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Old 06-10-2019, 08:31 AM
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gs462 gs462 is offline
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Quote:
Originally Posted by form74 View Post
I picked up 2/10’s plus by switching from 2 1/2 to 3 inch exhaust off on my 2 1/2 RamAir manifolds. Both exhaust systems were mandrel bent with x-pipe , dual mufflers and tail pipes . My motor is approximately 450 HP
Did you make any other changes??

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1971 Formula #s match white/tan
1973 TA Brewster/white #s match
1972 Buick GS455 #s match 69k miles now a 470 stroker.
1986 Buick Ttype 66K miles many mods 10 sec street car.
2001 Mustang gt premium vert. Mamas car