ok so i have a pretty mild setup. tfs street intake, 75mm bbk tb, o/r h pipe, magnaflow catback, u/d's, ac and smog delete, and 3.73s. seeing as there is not alot of cheaper stuff to buy for my engine anymore, a camshaft is looking to be good for me right now. anyway, i did some research on possible cams, and i have gotten suggestions for either an F303, Crane 2031, Steeda #19, or a comp cams XE27HR. i dont have heads which is gonna hurt the combo, but which cam will provide the most hp w/o drivablity loss for my setup?