i too just built my first 350 but im shootin for something a little higher...whether ill get there or not im not sure but i have to buy a new top end because of my CR and seen you were looking for heads...i have a set of headds for sale here that u might be interested in looking at. i think theyd be great for ur plans. just go to the classifieds and itll be under top end kit for sale. worth a look anyways good luck and let us know what kind of numbers you come up with