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The annulars were on different carb that i had tried, Holley 830

I have not had any good luck with the annular boosters, but i did ran a 850 quick fuel on a 360 in my Duster drag car, and could get the jetting right, i was into the 60s on the primary jets, and still not enough, put a 750 on and no problem with jetting, and pick up a bunch of ET.

1 inch 4 hole, it was a 331 Ford, i spent most of the day trying carbs and spacers

We pickup 12 hp on the dyno with a 1 inch super sucker. but results may vary.

I have been running the carter pumps for years, never any problems

I believe 625 was the largest AFB

I believe the down leg boosters work better, i have a QFT took it out of the box bolted it on, car ran great never a problem with it, i have made one jet change and adjusted the idle on the secondary's

I was thinking about getting the same ones

You should not need a 50cc pump the 30cc will work put a 37 squiter in and see how that works, i had the same problem and installed a 37 and it works good.

The squirter is to small on the carb or accel pump is bad, check your timing too..