About 12+ % fewer RPM's but it might get you out of the torque curve of your engine which you don't describe except as a generic 350. It would help you to know what engine was in the Trans Am.


1953 Chevy 5-window 3100
In the Stovebolt Gallery
More pix on Picturetrail

Dave
Engine & Driveline Moderator

If you can't make seventy by an easy road, don't go. ~~ Mark Twain