What about carb, ignition, transmission, and header size???? If street and highway cruizin' isn't a consideration, put some 4.11's or 4.56's with a spool in the back. Put the car on a serious diet, and get the weight down around 2800 with the driver in it. Oh yeah, a little inch engine with all that cam and compression is going to need to rev around 7000 rpm to make any decent horsepower, make sure the engine is balanced and clearanced very, very well to live at high revs.....