help me select a cam for my 331. 10.2 to 1 compression, 93lx mustang 5 speed 3.73 gears, gt40 mildly ported, explorer upper/lower, i want this to be a street driven car that sees the track maybe 15 times a year. i also have to pass ca emissions. i have some crane cobra 1.7 rr's i can use, or i can use 1.6's anyway let me know what you guys have used.