I,m building a 327 for my nova. I't is borded 30 over with flat top pistons. I am interested in the new thumpr mechanical cam by comp cams. My question is, would RHS pro action 180cc heads be a good match with is cam.Or what sive head should i use? This is a budget build so price is important.

Mark  

Those heads will probably work well with one of those cams (though all the Thumpr cams I know of are hydraulic rollers, not mechanical unless they've released some new part numbers), call the Comp tech line, tell them about the heads you're thinking about, and ask which Thumpr cam will work best.  

Thanks for the info! I'll do just that.