Looking from the back one side of my engine (the left) is running rich the left side always has black exaust grime and the right is prefectly clean, does anyone else have this problem, what can i do to fix?

What motors or motor do you have?

Ive got a 2000 Baja 272 Boss with a 454 Mag MPI

I had a friend buy a brand new 21 baha, and had rich cond problems, he took it to a dealer they put it on a tester and found a problem with the comp or map sensor, they fixed the problem. It was no big deal.

I didnt think it was that big of deal just wondered if it was happening to anyone else, i think ill run some cleaner through it the next time out, im pretty sure its just the fuel injectors. theres not much else it could be.