Re: Exhaust
Quote:
Originally Posted by bigblockv6
The dual exhaust will definitely help specially running the larger Holley 500but with 3.07 gears you may want to consider an upgrade to 3.54 gears as well specially with that Powerglide or PowerFlow as GMC called it  |
I'm with Pete here - 3:54 gears were usually installed behind a Pow-R-Flo trans so changing from 3:07 to 3:54 would be a better boost I think than the exhaust but doing BOTH would be great too! Good luck
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My 60-66 GMC Projects:
1960 1001 Custom Cab short wideside BBW, 305A V6, factory PB, Hood Jet, Radio and Hydramatic.
1962 K1000 4x4 short wideside, BBW, 305D w/ SM420, PTO Winch
1966 1001 Custom Cab short wideside, w/ super rare Sport Trim option interior (bucket seats)
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