how rich can an engine run ?

[Guest Gp crazy]

well i get black stuff out my exhaust tips while im going 75-100 mph but it seams to run fine. but i smell something like burning rubber when i stop after the run but no smoke? also no SES light ? am i to rich & is this a problem or turn out to be one ?

 

 

thanks jeff b

[THe_DeTAiL3R]

Maybe its your PVC or something thats making oil come out the crankcase and burn which stinks like hell.