I need some help from those of you with more experience with these old carbs.
I have a 1970 F100 with 300 i6. Carb has manual choke single port.

 

It's a Patent - says so on the carb.

Think its a Carter. They have trouble with the body screws loosening. There should be a number stamped on the mounting flange.
Carburetor | 1970 Ford F100 1/2 ton P/U 2WD 6 Cylinders B 4.9L 1BL OHV | AutoZone.com

 

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Carter numbers from NPD

 

Looks like a Carter YF to me, took a hygrade kit # 518C , they had a I.D. tag [always missing]

 

the round top piece is threaded internally for some odd reason also. It definitely doesn't look stock.
There doesn't seem to be much left of the gaskets especially where it mounts to the intake.
Is it supposed to have a little riser between the carb and the intake?

OK, after a little cleaning and looking I found it. Thanks guys