My 74 Pontiac Trans Am 455 first trip to dyno for baseline test

Cy Early
Cy Early
1,724
0
Published 2014-09-02
1974 Pontiac 455 Trans Am Dyno run. Untuned with only a 600 cfm carburetor on it and 32 degrees total timing. This was originaly a 350 Firebird Formula that got turned into a T/A clone. Now it has a 455 .030" over 462 with 1969 ram air heads, full length headers ,big comp cam and much more
All Comments (1)