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#1
05-14-2021, 03:28 PM
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Another 428 thread
So to make a long story short, I’ve got a 68 428 .030 and have the same L2257F sealed power pistons in it like “Racerboys” post. 4 reliefs and a 2 1/4” dish.... got a set of #13s that measure 75-76cc and flow about 240cfm. At about 9.7cr it should support a roller 230 to 240 at .050, right? 3.70 9” and a TKO600.
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