How the heck do guys run 14psi boost, wouldn't you have to cut static comp. down to 5:1.
Well a lot has to do with the heads used, and what fuel you use(type of engine in some cases). The ones running 14 PSI are usually not running pump gas. The ones that do generally lower their compression lower than 7:1
How do you find heads with CC's that big?
Simple answer... They don't. In the same way you can use a 400SB crank and rods to make a 350 into a higher compression 383 stroker, you can take a 350SB crank and rods to make a 400 into a lower compression stroker(sorry I haven't done this yet so I couldn't tell you what it would be).