Anyone running a 470 in a dedicated drag car?

Stay with the 470. You don’t need all that stroke.
What's your opinion with -14 cc dome pistons will get my static to 14.1:1, as it sits I may be able to squeeze 11.8:1 that's with the piston .008 out of the bore & .022 of gasket above that for a total of .030 gasket thickness. Is the flame travel impeded enough to hurt performance ? I'm confident in my abilities to massage a piston, get the cc's matched & weighed the same. By the way the heads are 78 cc trickflow 240s, I'm using 6.70 rods & 1.320 ch +6cc now.