I have a 440 in my ramcharger with a 4150/1050 proform. No matter what I do it runs rich at idle.
I set the throttle blades to show the transfer slots just as I should, set the idle mixture screws 1.5 turns.
Checked the power valve, opened up the idle bleeds from 73 to 76.
It has around 8” vacuum currently. It has 10” if I turn the idle up a little.
But no matter what I do it has little to no effect on a/f ratio of 10.8-11.2.
I’m at a loss.
It cruises around 12.5 and is around 12.5 at full throttle.