Well, 7 steps is close to 10. That would be my starting point. With the changes in fuel, etc. you’re probably right on the money.

miker
55 bird, 32 cabrio F code
Kent, WA
Tucson, AZ

When I started using a 390, which I really like now, I had to change main jets too. But still had an off idle hesitation/bog. I finally cured that by going to a larger squirter, the one that comes with the carb is really small like .025 and I changed to a .032

Any new carb cannot be expected to work on every application, unless it is a DIRECT OEM or QUALITY REBUILD for the exact application.

It can have accelerator pump mis-adjustement, cam selection (duration of shot), squirter size(s) as mentioned or in very special cases may need a 50cc accelerator pump. It has to be tuned for the application.

As for using manifold vacuum for the DIST ADV, this will bring in full vacuum advance @ idle and tip-in. No gradual application of vacuum advance.

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Three years ago, we installed an electronic distributor from CRT Performance who are on ebay.
Works great with a 600 cfm  dual feed Summit carb.

FORD Y-BLOCK 239-256-272-292-312 Small HEI DISTRIBUTOR BLUE + PLUG WIRES USA

It appears that the housings are new cast, or machined with media blasting to give OEM appearance. I am going to contact them.

What I want to know is if they can upgrade a numbers correct DIST for a dedicated appearnce/restoration.

"Chinese knock offs ... WHY? would you even consider using a low quality, poor performing with No  tech help or parts available distributor in your classic early Y-Block Ford?  When you start installing those low grade Chinese parts you might as well just bolt in a 350 scruby/350 trans and a 3.50 gear and build a belly button car. Do you really want that Chinese distributor with scruby cap starring at you every time you open your hood.... call me a purist but it would be way to embarrassing for me. We will not work on the Chinese Import fake distributors, no repairs, no set-up or curving and we have no parts for them. In this industry the last guy to work on it is responsible for it... we will not take responsibility for tech information or be a  warranty dump for Imported low quality products."

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