comp cams pi swapped piston clearance?

[lman657]

Hi guys, I'm looking at putting comp cam's XE270AH camset for my 4.6 headswap project, and i'm wondering if the valves clear the pistons with the larger compression ratio? I called comp cams, and the guy on the phone told me "figure that one out on your own..." I wasn't too impressed. Anyways, who is the best (mind you, I can't spend too much) at burning me a chip to correct my idle and account for my mods, which are to include L/T headers/ P&P PI heads/Prochamber.

Thanks!

lance

 

[1sweetGT]

Nice choice on the cams. I can't awnser the clerence question for you (I would probably say no clerence problems) but as far as the chip I would go with a custom Dynotune. Especially with your set up.