Holley HP Jets

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MB43

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Anybody know what the stock jet sizes are for a Holley 750 HP carb? I just picked one up, the jets in there are huge, 92's in the front and 88's in the back. That's waaaay to big for what I need, I'd like to go back to stock and work from there.

The list on the carb is 80528-2, if that matters.
 
i found info on a list #80528 pri jet #72 sec #84 power valve #65. also list #80528-1 pri #73 sec #73 power valve #65 hope this helps
 
mikedevore said:
i found info on a list #80528 pri jet #72 sec #84 power valve #65. also list #80528-1 pri #73 sec #73 power valve #65 hope this helps
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Where'd you find that? I've been looking around and haven't been able to find anything.
 
holley now has a web page, there was an icon just below the thread, i just clicked on it. alot of neat stuff there
 
I e-mailed tech support, they said that a) the -1 and -2 carbs have the same specs, and b) stock is 73 jets all around and 6.5 power valves.
 
Just to clarify one thing - the -1 and -2 have power valves in both, primary and secondary metering systems. The original version only had one on the primary side.
 
Locomotion said:
Just to clarify one thing - the -1 and -2 have power valves in both, primary and secondary metering systems. The original version only had one on the primary side.
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Any idea why they have two parts numbers (-1 and -2) for a carb with the same specs? Are there any differences between the two?
 
I think that has to do with production runs, "generation" of that carb # or something along those lines. Sometimes they make an obvious change/upgrade and sometimes it's not obvious.
 
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