I'm thinking of replacing the stock exhaust manifolds on the 67 vert with either a set of the HiPo Exhaust manifolds or Tri-Y's. But I've heard that even though Tri-Y's are better than stock, for the most part, they haven't lived up to a lot of owner's expectations, and are more troublesome than they're worth
So does anyone have the specs for Stock Vs HiPo Vs Tri-Y ?
I guess I'm looking for the most bang for the buck!
I may even consider a set of shorty headers, but that's seems like a lot of money for such a mediocre performance gain on a mild performance engine.
The 289 4bbl engine once rebuilt will be slightly modified, with some mild performance options, such as cam, lifters, rockers, intake, carb, headwork, ignition, etc. It already has duel exhaust, probably will change the mufflers as well.
So does anyone have the specs for Stock Vs HiPo Vs Tri-Y ?
I guess I'm looking for the most bang for the buck!
I may even consider a set of shorty headers, but that's seems like a lot of money for such a mediocre performance gain on a mild performance engine.
The 289 4bbl engine once rebuilt will be slightly modified, with some mild performance options, such as cam, lifters, rockers, intake, carb, headwork, ignition, etc. It already has duel exhaust, probably will change the mufflers as well.