Re: Lookin' to soup up your old inline 6?
not absolutely sure on the answer to your question, but when I swapped my stock exhaust manifold and intake with my headers and 4bbl carb the engine felt noticable torque'ier.....but the truck is still on jacks :smile: but it definately rocks the truck from side to side a TON more.
TP, did you want to say "you can't BEAT an inliner for truck duty"???
Either way, replacing a 454 with an INLINE.....one word, AWESOME......and do you have a link to the cast headers?
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1969 SS 350 Camaro Sold 2008
1970 3/4T K20, stock height with 33's, 250 I6, 3 on the tree, and locked front and rear 4.10's 
1980 Chevy Malibu 2 dr Sold 2007
1993 Olds. Cutlass Ciera Wagon Traded 2006
2003 Saturn L200 w/5pd. D/D
My list spans 5 decades with One common thread.....GM!
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