Holley 1850 float settings??

[Gaz64]

Originally Posted by zrayr

It depends on the car of course. With my vintage Paxton GT350's running a Holley 650 Street HP carb, I would often have to turn at least 4 flats from the stock setting, sometimes a full turn. This was not a supercharger issue, the carbs ran the same way with the blower disconnected. Maybe it's a cautious approach on Holleys part, but the float levels seems to be consistanly way too high on most every Holley carb I've met.

Even when running the supercharged cars on high speed long distance endurance runs of over 100 miles at maximum RPM (In west Texas) I have never ran the float chamber dry with a dramacally lowered float.

Z

Im glad you share that point of view.

I thought I was nuts at one point, and my friends thought so also.

I would set the level at "just" trickle, bit hard with a cam as we know, lol.

Then I'd experiment lower the levels a few flats at time, at not notice any power loss etc, so drop them again, somewhere the 3-6 flats from memory.

Any QFT, Holley HP etc with windows I run in the bottom third of the window.

Gary