x heads ona 318
I should add, with a smallish cam, the loss of torque isn't as noticiable as it would be with a larger cam, compared to say, the longer stroke 360. And, because the heads breath better, and the valves are bigger, even with a smallish cam, the power band will be higher on a 318 than a 360 with the same same, or a 318 with small port heads.
So really, in the end, as a whole, with a mildish street 318, you get too keep kinda the same power down low, and add, sayyyyyy, 1500rpm to the top end.
Really not a bad deal, if you know how to tune for big port heads.