I have an 85 GT 5spd, I am going to replace gears, 2.73 to 3.73, I have short tube headers and an o/r X-pipe, flowmasters, 600 cfm Holley, K&N air filter. I would like a recommendation on heads, intake, and cam. Also intake and cam w/o replacing heads right away. Will not be on track, just zipping around town and showing off, well maybe on track just to get some numbers once in a while. I would like to keep it mild and low dollar. Any advice would be welcome.