Quinton Performance Engineering, LLC

05/31/2026

When your Amazon Prime account shows next day, Saturday afternoon delivery and you get up Saturday morning to find a Wednesday delivery date. Errr

05/30/2026

If you need heat, run the bypass.

Is it worth all the effort? ~5 hp at the crank, yep!

05/30/2026

Do you have to plug the throttle body coolant passages? No. If you want to be undetectable in a pure stock environment, you leave the coolant hoses hooked up with the passages plugged. However, it kills coolant flow through the heater core so plan on summer fun only with this old school mod on the L98's.

05/28/2026

The beginning of one of the mods done back in the day to help those L98's get down against those 5 slos while staying stock appearing. :-)

05/25/2026

Do you have issues when you can't leave a stock L98 alone? :-)

Larry Kubes, I'm figuring this is the area you were thinking of?

05/25/2026

Remembering and honoring the courageous men and women who made the ultimate sacrifice in service to our nation. Their dedication and selflessness continue to reward us with our Freedoms every single day. Thank you!

05/25/2026

Making L98 TPI's great again!

05/24/2026

Just for the record, Apu was the coolest part of the Simpsons. :-)

Pontiac Powwa!

05/10/2026

Pete McCarthy, the legendary “Pontiac Guy,” passed away this week, and the Pontiac community lost a giant.

As a younger Pontiac engine builder and engineer, I grew up with Pete’s books in my hands and his knowledge in my head. From porting techniques and cylinder head flow to the real-world history of Pontiac performance, his writings taught me more than any class or dyno session ever could. He turned pages of dry specs into practical wisdom I still use every time I build an engine.

Thank you, Pete. You kept the flame alive for generations of us who came after the muscle car era. Your work will live on in every Pontiac that’s built better because of what you shared.

Rest in peace and truth, sir. The Pontiac community is forever in your debt.

https://www.facebook.com/share/p/1Dhw6P6mdN/

With profound sadness, we announce the passing of Peter J. “Pete” McCarthy on Thursday, May 7th, 2026. He peacefully passed due to natural causes at the age of 92. Pete was a renowned figure in the Pro Stock NHRA racing circuit. For over three decades, he skillfully maneuvered Pontiac Firebirds and GTOs during the muscle car era. He co-authored and published two highly acclaimed how-to books: “Pontiac Racers High Performance Handbook” and “Pontiac Musclecar Performance 1955-1979.” In addition to these best-selling books, he produced the immensely popular “Performance Porting” video.

Pete was an accomplished athlete during his college years, excelling in basketball at Michigan State University. His father, Maurice, was a professional golfer, and Pete joined him in numerous tournaments during the 1950s. On October 1st, 1953, Pete enlisted in the United States Navy, where he received several commendation medals during his four-year service to our nation. He was honorably discharged as a radio operator in San Diego and promptly transitioned to a career in radio at KFMX in San Diego. It was there that he acquired knowledge of advertising, which ultimately led him to a 20-year career with the Pacific Bell Yellow Pages, where he served as union president. While at Pacific Bell, he met Jane Osterholm, whom he later married on St. Patrick’s Day, 1996. Together, they became a formidable force in the publishing industry, spearheading Pontiac Enthusiast Magazine with Pete as the editor and Jane as General Manager of subscriptions. They traveled extensively across the country, promoting the magazine at numerous Pontiac Drag Day events and forging enduring friendships along the way.

In his later years, Pete found solace in the company of water, particularly Dana Point Harbor and nearby lakes. He will be remembered for his commanding presence, coupled with a resonant, booming baritone voice and a “no filter” personality.

A private remembrance ceremony will be held for family members only, in accordance with Pete’s wishes.