Holley/Demon Carb stumble

Cudafever said

I said i would take a better look at this graph when i got time and i have. Even printed it out a little bit bigger but ..............

I mean i get it... as it solid fuel that you add air to (emulsion) before it is discharged into the eng.
more air makes it lighter(so to speak ) and allows it to come in faster or slower(into the carb)

But one hole 2 holes ..3 and are some of them in fuel. aka pulling fuel or are all them bleed in the metering side, air.
I have to go out and look at one of my carbs/ metering block to figure this out.

Man i wish i had another 3310 (750 vac secondary carb)

Click to expand...

Hang with it. What you learn will be priceless. You're going to find out that many of the carb gurus are not. That's why in 1987 I switched to mechanical fuel injection, which has its own set of issues that require more work than it's worth.

You are now finding out why I tell anyone who asks not to buy an off the shelf carb. I can name 5, maybe 6 guys right now who I'd trust to set up a carb. Maybe more if I typed them out. All have a proven track record of producing killer carbs.

Emulsion is tricky. It was all the rage in the 1980's and 1990's to use as much emulsion as you could. Now, that is not so much the case.

IMO booster design and placement in the Venturi is just as important, or maybe more important than emulsion on the whole. There is way more science to this stuff than is actually understood.