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Description
COMP Cams Camshaft A8 299THR7 ThumperDesigned to deliver an aggressive, hard hitting exhaust note at idle, the Thumpr camshaft series from COMP Cams also delivers excellent horsepower gains and a broad torque curve. A perfect choice for muscle cars and street rods, the Thumpr series' early intake valve opening and long exhaust duration create optimum overlap for that race car idle. The Thumpr grinds all require an aftermarket torque converter and lower gear ratio to ensure the drivetrain
Designed to deliver an aggressive, hard-hitting exhaust note at idle, the Thumpr camshaft series from COMP Cams also delivers excellent horsepower gains and a broad torque curve. A perfect choice for muscle cars and street rods, the Thumpr series' early intake valve opening and long exhaust duration create optimum overlap for that race car idle. The Thumpr grinds all require an aftermarket torque converter and lower gear ratio to ensure the drivetrain always puts the engine in its powerband. Additionally, Thumpr camshafts typically deliver reduced vacuum at idle, making a vacuum canister, pump or hydroboost a requirement for vehicles running power brakes.
CatalogUser 1
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1967 | American Motors | Ambassador | 880 |
| 1968-1970 | American Motors | Ambassador | Base |
| 1971-1974 | American Motors | Ambassador | Brougham |
| 1968-1971 | American Motors | Ambassador | DPL |
| 1968-1972 | American Motors | Ambassador | SST |
| 1966-1968 | American Motors | American | 220 |
| 1968 | American Motors | American | 440 |
| 1968 | American Motors | American | Rogue |
| 1968-1970,1978-1979 | American Motors | AMX | Base |
| 1966 | American Motors | Classic | 550 |
| 1966 | American Motors | Classic | 770 |
| 1978-1979 | American Motors | Concord | Base |
| 1979 | American Motors | Concord | DL |
| 1979 | American Motors | Concord | Limited |
| 1972-1975 | American Motors | Gremlin | Base |
| 1976 | American Motors | Gremlin | Custom |
| 1977 | American Motors | Hornet | AMX |
| 1970-1971,1973-1977 | American Motors | Hornet | Base |
| 1971 | American Motors | Hornet | SC/360 |
| 1971-1977 | American Motors | Hornet | Sportabout |
| 1970-1972 | American Motors | Hornet | SST |
| 1971-1974 | American Motors | Javelin | AMX |
| 1968-1974 | American Motors | Javelin | Base |
| 1968-1972 | American Motors | Javelin | SST |
| 1970 | American Motors | Javelin | SST Mark Donohue |
| 1970 | American Motors | Javelin | SST Trans Am |
| 1967 | American Motors | Marlin | Base |
| 1971-1978 | American Motors | Matador | Base |
| 1974 | American Motors | Matador | Brougham |
| 1974 | American Motors | Matador | X |
| 1978 | American Motors | Pacer | Base |
| 1979 | American Motors | Pacer | DL |
| 1979 | American Motors | Pacer | Limited |
| 1969 | American Motors | Rambler | 440 |
| 1969 | American Motors | Rambler | Base |
| 1969 | American Motors | Rambler | Hurst SC/Rambler |
| 1969 | American Motors | Rambler | Rogue |
| 1967-1968 | American Motors | Rebel | 550 |
| 1968 | American Motors | Rebel | 770 |
| 1970 | American Motors | Rebel | Base |
| 1968 | American Motors | Rebel | SST |
| 1966 | American Motors | Rogue | Base |
| 1979 | American Motors | Spirit | Base |
| 1974 | Bricklin | SV-1 | Base |
| 1974 | International | 100 | Base |
| 1974 | International | 100 | Travelall |
| 1974 | International | 200 | Base |
| 1974 | International | 200 | Travelall |
| 1974-1983 | Jeep | Cherokee | Base |
| 1981-1982 | Jeep | Cherokee | Chief |
| 1983 | Jeep | Cherokee | Pioneer |
| 1974-1977 | Jeep | Cherokee | S |
| 1978-1980 | Jeep | Cherokee | Wide Track |
| 1983 | Jeep | Cherokee | Wide Track Chief |
| 1971-1981 | Jeep | CJ5 | Base |
| 1977-1980 | Jeep | CJ5 | Golden Eagle |
| 1980-1981 | Jeep | CJ5 | Laredo |
| 1975-1981 | Jeep | CJ5 | Renegade |
| 1971-1975 | Jeep | CJ6 | Base |
| 1976-1981 | Jeep | CJ7 | Base |
| 1977-1979 | Jeep | CJ7 | Golden Eagle |
| 1980 | Jeep | CJ7 | Golden Hawk |
| 1980-1981 | Jeep | CJ7 | Laredo |
| 1976-1981 | Jeep | CJ7 | Renegade |
| 1972-1973 | Jeep | Commando | Base |
| 1984-1991 | Jeep | Grand Wagoneer | Base |
| 1984-1985 | Jeep | Grand Wagoneer | Limited |
| 1971-1973 | Jeep | J-100 | Base |
| 1970-1973 | Jeep | J-2500 | Base |
| 1970-1973 | Jeep | J-2600 | Base |
| 1970-1971 | Jeep | J-3800 | Base |
| 1971-1973 | Jeep | J-4500 | Base |
| 1971-1973 | Jeep | J-4600 | Base |
| 1971-1973 | Jeep | J-4700 | Base |
| 1971-1973 | Jeep | J-4800 | Base |
| 1974-1988 | Jeep | J10 | Base |
| 1974-1988 | Jeep | J20 | Base |
| 1972-1982 | Jeep | Wagoneer | Base |
| 1982-1983 | Jeep | Wagoneer | Brougham |
| 1973-1976 | Jeep | Wagoneer | Custom |
| 1979-1983 | Jeep | Wagoneer | Limited |
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4.7 ★★★★★
Based on 7 reviews
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Product Reviews
★★★★★ 4
A beautiful story of difficult times to be who you truly were!
Format: Kindle
”She felt as if she had finally cracked the last part of a code she had been puzzling over for so long that she couldn’t remember when she had started deciphering it. She felt exhilarated."
Meet seventeen year old Lily Hu, who lives in San Francisco in the 1950’s. She is Chinese American and dreams of going to college and working with her Aunt at the Jet Propulsion Laboratory, to assist with getting a rocket into space. Her and her friend Kathleen Miller, aka Kath, are the only two girls in their advanced math class. Kath dreams of becoming a pilot one day.
Over time, Lily finds ads in magazines of male impersonators and is fascinated. The ad slips out of one of her books one day while she is in the bathroom, and her classmate Kath finds it. She tells her that she has seen the male impersonator in the ad before, Tommy Andrews, at the Telegraph Club. She tells Lily she can take her if she wants to go and Lily agrees. She wants to explore the feelings she has that she cannot quite explain yet. Over time, Lily’s feelings for Kath change from that of a friendship to something much more.
Malinda Lo did an unquestionably, fantastic job with this YA historical fiction LGBTQ novel. She touched on a subject that many authors have not written about; being an Asian American teen that identifies as a lesbian in the 1950’s. This was during a time when being gay was considered illegal, where there could be no public affection shown between members of the same sex, and when gay members could not congregate in bars/clubs. It was also during a time when the government was looking for communists. One wrong move, and Lily and her family could potentially be deported just based off of who they socialized with. Lo did her research and it shows. I especially appreciated the “Author’s Notes” section at the end of the book which gave additional information and pictures. I believe this would be a great read for younger members of the LGBTQ community.
My only critiques would be that towards the middle of the book it felt a tad slow. I also wished there was more information on how Lily and Kath’s relationship turned out. In the epilogue, their relationship status is left open and I wished I knew more about what the future held for them.
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Reviewed in the United States on September 5, 2022
★★★★★ 5
Sapphic Perfection!
Format: Paperback
Set in the 1950's, San Francisco scene - an amazing coming out and coming of age story of a Chinese American. Such a well done book!
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Reviewed in the United States on March 24, 2026
★★★★★ 5
Very unique book for children to read
Format: Paperback
My 10year old read this book. She said it's crazy good. She wanted to give it 1,000 stars.I started reading it and it's really good I was surprised how it kept my attention.
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Reviewed in the United States on June 22, 2025
★★★★★ 5
Excellent Middle School Resource
Format: Kindle
What a sweet read about family, friendships, grief, and triumph. Highly recommend for mature 4th grade and older as a conversation starter.
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Reviewed in the United States on July 11, 2024
★★★★★ 4
Great way to introduce children to drag queens and gender transition
Format: Paperback
This is a nice story about a little girl (in 5th grade) who lives with her mom and uncle who is a drag queen. Over the course of the story, she realizes that the reason she doesn’t like make-up, jewelry, dresses, and nail polish is NOT because she has watched a grown man wear those things her entire life. And it isn’t because some girls just don’t like those things. It is because she is really a boy. She transitions to a boy and is finally happy. This is a great story to introduce children to drag queens and the idea that if they aren’t stereotypical girls or boys, they might be born in the wrong body. Happiness can be found living a life pretending to be the sex that you are not.
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Reviewed in the United States on May 22, 2024