360 Build ... another one

Rebuild what you have. Stick KB107s in it for pistons. Have the stock heads done with a good 5 angle valve job. Internally balance it. Stick in an XE274H hydraulic and a Performer intake, 750 Thunder AVS, and cheapo headers and you're there. 400hp is very easy to get so long as the machine work is top notch.

Unfortunately its just a block and bottom end. Taking the 318 out of my car and put a 360 in that was spare as it would make 400hp easer than the 318 would with a standard stroke.

I'll probably be using a RPM Air-Gap since in the future I may go for more power and if it is better than the Performer, rather spend the little extra and do it once.

Looks like I'll need a 750 carb, then just to decide on the cam, which seems will be the toughest choice.

Thanks for the advice.