340 with 302 cast head for pickup

I never personally cc'd a set of 302s, but I've read at least three members on here that did theirs and came up with < 60cc...that's why I used it as the chamber size. If they're bigger, say closer to 64cc, all the better. But I personally wouldn't want to use them unported on anything other than a near stock build. IMHO, any set of stock 318 heads with as much cam as he's using and that single plane manifold is a poor match...but, hey, it's not mine so...I'll stop.