Ok so I am wanting to build a hot 360. It’s going in a 73 duster 4 speed 8 3/4 with 4.10s and a spool. This is a street/strip, I am ok with it being a handful in the street. Car is manual steering and brakes. Now my power goals are around 425-450 with equal torque and a nasty idle. Yes I know that kinda hampers low end torgue, but who doesn’t love a nasty idle. I am starting with a 71 model 360 block that has factory crank and rods with flat tops in it now. Has a pair of 2.02 valve J heads, and 340 intake. Has a voodoo cam, I think it was the one with .509 lift. Holley 750 with a set of longtubes runs good but has a lot of blow by, so time for some work. Looking for input on a good set up would like to keep my heads and port and polish them. Rpm air gap intake, thinking I want to try the demon 750 carb mechanical secondary. Would like to keep compression around 9.5 running 93oct. Don’t know which cam to run need input and not sure what pistons to run would like to keep the pistons hyper for cost. Also looking at Ingtion systems would msd be best.