N42 L28

N42 head with the MSA III cam kit on top of N42 block with dished pistons or F54 block with flat topped pistons?  I ask because those are my choices.  I have an E31 head too but I'm scared to put it on 86mm flat tops.  I'd rather use it on the 2.4.

Thanks for some guidance. 

This one is a N42 block and pistons with a E31 head and Schneider 260-270F grind.

He suggested do not go more than that grind. Street car only.

Thanks, that was the intentions of the guy I bought a 240 from. It came with an e31 and f54 block with 87mm dished pistons but no cam kit. I've got that same Schneider cam. I just have to install it onto the e31. Waiting for cooler weather.

He also gave me the triple weber 40s and Cannon intake. They need to be rebuilt though. I'm a little intimidated by those right now. Just starting to get comfortable with my SUs.