the question is when running a smaller head than the cubic inch requires what does it do beside lowering the torque curve..

i have the 325cc -1 heads on my stock block 499, with the weight to et formula it makes 735hp. so thats a little less than 1.5 hp per ci

going to build a larger engine with a aluminum block i can build it any size, but will the heads limit the hp at a certain point? will i still gain some hp even with to small a head.

cant really afford more heads yet, just wanting that stock block out of there before it gives up.

thanks for some input.