Front mount and duty cycle

[timloomis]

I'm not sure if it's the maft though, like you said, because it doesnt do this all the time. Just because I fixed it, then it was back a few days later. I'm adding about 3 clicks(15%) fuel at wot, so I could be trying to tune for low fuel flow. I would think I'd have to lean out the top end instead of adding fuel. I've already switched gm mas sensors. I'd like to swap in my original mas, but I can't since I dont have an afc to lean out my 550's, and I dont have my 450's anymore. If the fuel filter doesnt help, a buddy of mine has a new walbro 190 he'll sell me cheap. He only wants 60 for it, and a new fuel sock for mine is 15. So I think I'll just spend the extra.