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JWL · 12-27-2019, 05:45 PM

That just ain;t going to happen. Even the smallest stock 265 Chevy heads flow over 170 CFM @ 28 inches. A fully modified Flathead can sometimes make 150 CFM @ 28. Often the Flatheads are in water to get there and require hours of rework to get them liquid tight again. Oh, and another thing, lift is not an issue. A 1.760 valve can actually be COMPLETELY REMOVED with no increase in flow after around .475.

12-27-2019, 05:45 PM	#22
JWL Member Emeritus Join Date: May 2010 Location: Fitzgerald, Georgia Posts: 2,204	Re: Baby Ruth abd the big engine. That just ain;t going to happen. Even the smallest stock 265 Chevy heads flow over 170 CFM @ 28 inches. A fully modified Flathead can sometimes make 150 CFM @ 28. Often the Flatheads are in water to get there and require hours of rework to get them liquid tight again. Oh, and another thing, lift is not an issue. A 1.760 valve can actually be COMPLETELY REMOVED with no increase in flow after around .475.