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.
When it comes to cams, I really like what Jim Dowell @ Racer Brown does, I know Bullet and OCG also.
With nitrous I planned to use port injected system in case of dual plane intake. Going to single plane will make things easier with plate system, especially that its going to be 200 shot tops just for fun ocasionally.

In my 470ci I have RacerBrown solid roller with 106 lsa and I am extremly happy with how the car runs. Its indy tunnel ram and indy headed engine, with very nice port work, almost 12:1. Unfortunately Larry Smith at Flow2tech cylinder heads passed away recently. His port work was good for just over 400cfm @ .800 lift with Indy SR and -1 heads. I usually try to stay below 8000 with this engine. I avoid wide lsa to bing peak rpms down on purpose. My 470 with previous setup (single dominator, less cam) made 740hp, tunnel ram with dual quads and new cam transformed this combo. Feels like MUCH more power now, but this can be a function of torque being lower. I really want to build 500ci bottom end for this with 12.5:1 static compresion but this is for another topic. We need to talk about 500ci bottom end as I am puzzled about rod(aluminium) size I need to use in this. A bit worried about side loading. I will send you PM.