Anyone running a 470 in a dedicated drag car?

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.

What gas are you going to run? I'd pick the gas that you're going to run first and then pick the compression ratio to match the gas. If C12 is available in your area then that is a good gas to design around. For a race engine where you're willing to buy race gas like C12 then 13 or 13.5 should be a good safe compression ratio that will allow you to run in any weather. If you already own the pistons then 11.8 would be fine. I made more than 700 hp with less compression than that but that was a fairly trick engine.