731 head for NA eta?

[kickinindian]

just get a junkyard b25, add s52b28 crank, mild cam, squid tune, and you still wont get 250hp...m20s do not make alot of power NAed.

but what i just explained has been pretty fun for me so far feels like the engine that should have been in the car

[whitebulat22]

I have an 86 ETA and in a perfect world it will be making 250 WHP through natural aspiration in the future. Since the 885 head doesn't match the eta pistons and drops compression a fair amount I've been thinking about trimming down a 731 head to more easily reach compression around 11 to 1.

I'm trying to do as little work and money spending as possible so I'd rather not go get some I pistons. I know the 885 is a superior design but is a 2.7i + 731 with a big cam / valves, high compression thinned head (I'm buying head studs of course) and a full computer tune realistically and reasonably gonna be able to get near my goal?