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07-06-2005, 10:47 PM
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#1 |
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Registered User
Join Date: May 2004
Location: Saint Louis
Posts: 76
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i can't help it
i cannot help this oxymoron,,, i am going to be rebuilding a stock 454 in my 79 silverado.. i have some 049 and 781 heads i want as much performance as i can get without sacrificing mileage (or lack of) How much would installing larger valves in the mentioned heads affect mileage,,,, i would probably run a 2.19x1.88??? AND A LITTLE 260 ISH DURATION CAM,, HEADERS,, AND DUAL PLANE. THANKS
Last edited by RapidRide2; 07-06-2005 at 10:48 PM. |
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