over the counter "292" cast number sbc heads ported and unported?
thanks

 

yes the stock heads have peak flow #'s around 205cfm to 218cfm depending on the flow bench used and the ported one all depend on who ported them and how far they took them. the average bowl blend and gasket match is usualy good for around 230 to 240cfm.

that is the production 292 fuelie head from production cars not the 292 turbo head that was offered aftermarked by GM back in the day.