Originally Posted by INTMD8
Originally Posted by Hemi_Joel
The exhaust manifolds are nothing special. Just extrude honed street hemi manifolds. Remember, it all has to go through mufflers and a two and a half inch exhaust system all the way back to the bumper. And the hemi exhaust manifolds are outstanding as built.




I'm surprised. Would have thought extensively hand ported before extrude honing at least. At best I would think cut/weld/blend so the downward break wasn't so extreme. (try to increase radius at top of manifold ports)


I tried that, it didn't help.

[img]http://i.imgur.com/boeexFms.jpg[/img]
31 Plymouth Coupe, 392 Hemi, T56 magnum
RS23J71
RS27J77
RP23J71
RO23J71
WM21J8A
I don't regret the things I've done. I only regret the things I didn't do.
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