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Old 09-09-09, 04:35PM   #1
4speed
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Default Identify a holley

Hi there !!

is there anyone who can tell me how to Identify a holley carb when the choke tower is gone?? have tried the holley tech pages but nothing so far.
Thanks in advance!!
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Old 09-09-09, 05:18PM   #2
shaker455
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There's a few ways and I can help:

On the drivers side front, right under the lip where the aircleaner gasket goes there's a raised casting letter and number.

For example P-32 indicates a 850 mainbody

Also, flip the carb over and tell me what number is stamped in the throttleplates?
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Old 09-10-09, 02:59PM   #3
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shaker455

On the drivers side front, right under the lip it says P-46 , and when flipping the carb over i can read a number on the bottom it is 7071AS, on the throttleplates its 172 on the prim, and 173 on the sec, can you find anything out of these numbers ?? i cant.

Thanks!
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Old 09-11-09, 10:07AM   #4
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4Speed,
Yes, I can tell you want you have from those numbers and I'll post when I get home but off the top of my head it sounds like you have a 750 cfm.
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Old 09-11-09, 08:30PM   #5
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4Speed,
You have a 4780 which is an 800 cfm

750 primarys 1-3/8" with 1-7/16" secondaries.
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Old 09-14-09, 05:06PM   #6
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Shaker455

Thanks for the info, it's going to be helpful . now i can check what stock jets it should have before i start up the engine.
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