4A-GE engine mix - question

[Uzelac]

Bean Bandit Wrote:with a 1.2 HG shy over 12.6:1 (static)CR
a nice and easy (allows metric or imperial) CR calculator you can find here: http://www.csgnetwork.com/compcalc.html

when you say no porting at all, does that mean the hotspots in the combustion chamber are still there? if yes in combination with the wiseco pistons you'll be in big trouble.

12.6:1 sounds great, i had 13-14:1 figures in my mind .
Chambers can be done, ported, removed hotspots, whatever, no problem, if that is reasonable, if at the end i can end up with low 1.something HG and CR at ~11.5-12 with Wisecos.

I'm aware about importance of squish, that's the reason I don't want to go with larger HG.

If not, then i will continue to use bigport head, and keep the smallport for some other times or other engine which doesn't have Wisecos.
BTW. for what i know now, i would never again by pistons made like these, flat surface is the way to go for pistons.