360 heads on 318

Rumblefish is very right, streetability will become a concern if you get a cam big enough to give those heads a workout, I have 340 j heads on a 318 myself and I looked at the 415 article with interest, they used a comp xe hl series to take advantage of the .904 lifters, but you mentioned a thumpr cam, I thought you may be interested in knowing that that is a fairly pricey setup, the lifters alone are over 400 dollars. I would like to suggest that you look at Hughes engines, they have a couple cams in the muscle car series that will give you a lopey idle but great torque off idle, and low end torque is where you will need to focus on that particular combo, this I can attest from personal experience. I used the .489 version, 219* on a 108 lsa plus 3* of timing. I can burn them all the way off the rim at this point, no bull about it. I will have some new pic's of precisely that here pretty soon!! Best of luck to you!:salute: