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Engine package is a 70 340 + .030, J heads, comp 284 cam 240/246 507/510, 750 Q series double pump. Engine is timed at 20 initial 34 total. Carb seems to want to run rich all the time. Dropped the jets from 74/84 to 70/80. The idle mixture screws are barely open. I changed the air bleeds from...

As the title says: How do I make my 750 quickfuel dp run and idle leaner. It is way to rich right now. Thanks

If you a hesitation when you quickly open up your carb do you need a larger or smaller squirter? 750 quick Fuel DP carb.

I run accross a carter thermoquad with the following numbers on the base plate. 6518S and 16373. I thought I knew what I had but now I don't. Please help me figure it out?

Just changed carbs from a Holley 700DP to a Quick Fuel 750. I'm having trouble with it wanting to try to backfire when you hammer it wide open. Any ideas?