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11-08-2009, 05:07 PM
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#1 |
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Registered User
Join Date: Jul 2008
Location: Vancouver BC
Posts: 448
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454 Exhaust
Hey,
I have a 454 bbc in my 78 jimmy. It has a quadra jet 4 barrel, long tube headesr, RV cam,HEI, and duel glass packs. The exhaust is only 2 1/4, is that too small for this motor? Im looking to swap the glass packs out(preferr the deep tone of a flowmaster than that blaat). If im going with 1 chamber flowmasters, would that cause too much back pressure? thanks
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1978 GMC Jimmy 454bbc Turbo400 NP205 3.73 gears 4inch lift 33's |
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