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i have a 470 setup i would like to use that has flat top pistons and comes to 11.3:1 how much power will that give up vs. a dome setup of about 10 -15 cc to get to 13-14:1 i would like to keep cost down and reuse the pistons i have instead of buying new and rebalancing rotating asb. but if it is a big loss i will go with new pistons


above 11/1cr each point is worth about 10hp.the gains are less than going from 8/1 to 9/1 as shown in a mopar test changing head gasket thicknesses where the gains were 15hp per point in cr.