I swaped my headers/ staight pipe (stock muffs) to the original oven manifold and mid pipe to a resonator where the cat was. When I pulled off the header I notice the front rotor was burning nice/clean/white. Where as, the back rotor is black and burning real fat. What would cause this? Good spark to both rotors, still missing with the timing, and the check engine light is on because of the Air intake thermo sensor but I have one that will be here in just a few hours. JUst gettin tired of this thing and ready to run it hard...

Or go to Colo and pick up the 79....


Thanks