Thread: Rebuilding a 292 for mpg
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04-17-2006 09:56 PM #3
Good point. Something like a 390 Holley. What about increasing the size of the exhaust valves? My thinking was that it would increase the volumetric effieciency which would help with mpg. I'm just taking a guess on the cam.305 ci Y-block in 46 1/2 ton





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It would be nice if this up and down crap would cease.
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