[Perf. Eng. Eric]

On our Dyno, we have only seen a small drop in peak HP. (about 7-10) , but the torque curve was sweet!!! For the cam you have ,I think the Air Gap is the manifold I would use. We have gone to the Air Gap on all of our 302 stroked and non-stroked engine packages for our Cobras. We will also be giving our customers the option of an Air Gap on our 351 W and 460 based engines also. Hope this helps.