No disrespect intended, but that Gardner style exhaust could be a choke point. I know I had one and loved the sound, but taking mine off got me probably 30 hp. I had a 66 GTO that i dynoed on a chassis dyno and it made 209 hp at the wheel. I took off the Gardner exhaust and stock manifolds, added Ram Air manifolds and went to a 2.5 inch exhaust, and from a stock cam to a Crower 60916 and re dynoed at 270 hp. It's something to look at.
__________________
"I know just enough to keep me here, but not enough to get me out"
|