I want to start building my 99 gt this winter after carshow/race season is over, and i know i want to doo some top end stuff. (heads cams headers intake) but my question is can i bolt the heads on fully assembled, like is there head bolt access with cams and all in the heads. I've never took heads off a mod motor before only classic pushrod 5.0 motors. i was thinking if i can bolt them up assembled, i could start building them now and have them ready by like the end of the season