Comparison of H-Pipe to H-pipe. The GTO has Doug's Headers and the T/A has the Rare R/A manifolds with the 2.45 inch opening. The Headers and manifolds are round port. Both are 2.5 inch mandrel bent systems. GTO has a 461 stroker with the XR288HR Comp cam at 110 LSA and 236/242 @ .050. The T/A is a 433 stroker with a Butler custom grind HR at 112 LSA because of the manifolds and 230/236 @.050. Mufflers are Texas T/A's. Which one is louder or sounds better? I like them both.
https://youtu.be/CQKeDxSwjTk