87 Monte Carlo SS LQ4 Swap

My 87 SS I’ve grown up with this car my dad traded for it when I was 9. He took the original 305 out and put a built 305 out ,and later on replaced it with a 350 and 350th combination. I am now 30 and putting an LS and a 700r4 in it to make it more drivable but still fun. The LS is a LQ4 that now has flat top pistons, Texas speed bald eagle cam, btr pushrods, beehive valve springs. I’m only wanting to build it N/A and would be really happy with 400hp.