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Holley Carburetor identification

Old 10-14-2011, 03:11 PM
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Holley Carburetor identification

I got a old Holley 4-barrel double pumper that has had the air horn milled off.
These are the only #'s I can find on the carb and the base plate.

12r-4770B
R-24
R-46
0643
7504 3

Any help would be greatly appreciated.
Old 10-14-2011, 03:58 PM
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Car: 1992 Camaro RS
Engine: Vortec headed 355, xe262
Transmission: T56
Axle/Gears: 9-bolt 3.70
Re: Holley Carburetor identification

I am pretty sure everything on a 650 and a 750 interchange. The only difference is the mainbody. I would assume it's a 650, though. I havent seen a 750 next to a 650 to tell a difference though.
Old 10-14-2011, 04:29 PM
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Re: Holley Carburetor identification

I did a little more research and I agree with you. Thank you for your help.
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