Guys... I can't set the rear float on my Holley 4160 (351M).
The float nut will loosen, but not tigthen unless it moves the screw with it.
That is, I can't set the screw to where I want it, and hold it with a screwdriver and tighten the nut... the nut just spins. Unless I remove the screw driver and let the screw spin with the nut to tigthen. Does that make sense?
What is this and how can I fix it?
Also, turning the idle misture screws in leans it out? Correct? Loosening them makes it more rich?
Thanks all!
Brad