Tail Pipe

[ALVAROG1983]

i have black build up at the end of my exhaust is that fuel to rich can anyone conform i get smoke when i rev the motor up in park .if this is the case can anyone walk me through tune (xfi).

 

[ALVAROG1983]

Ttt

i have black build up at the end of my exhaust is that fuel to rich can anyone conform i get smoke when i rev the motor up in park .if this is the case can anyone walk me through tune (xfi) or know a good tech.[/QUOTE


any suggestions