Small block + 4 speed build
If you plan on spraying it do run a single plane intake. I have sprayed using a 2 plane deal and it was okay until we got over 175hp jets.
Currently my favorite pistons are Mahle. You should consider swapping the top ring to GNS series SS if you are regularly utilizing a power adder.
For the camshaft I would call Bullet, Mike Jones or Oregon Cam Grinders. I have a loose understanding of valve timing dynamics and leave that stuff to the experts. LSA isnt everything. I have a 499" motor with an intended 9000rpm redline and the LSA is 114. My other 511 (750hp@7100rpm) has a 112LSA.