Quote: Wild Bill i may have missed it but did you try adding more timing and fattening up the carb some? i would think it would kill the peak numbers slightly but put bigger numbers at a lower rpm. alcohol motors seem to just keep making power by adding more jet. I see some guys asking if methanol makes that much more power i believe its 10-15% more than gas.
No, you didn't miss it. We didn't do either. Come to think of it, We didn't even have to tweak the 4 corner idle screws.
Thumper, here's the spacer. Black Widow Carb Spacer. Yes they have them for both the 4150 and 4500 carbs. It's a slick piece. It starts as a 4 hole then transitions to an open.
