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Ford Holley carb adjustment


COPPERHEAD85

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Just put another carb on the 81 F-100, it s a 4180 Ford rebuild.Its loading like crazy at an idle but runs fine out on the road.
There is no adjustment on the metering block like a regular holley to tweak the mix.How do you set the friking thing?
 


Explorin94

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If it is a factory ford carb then the idle jets are in the bottom plate of the carb. I don't remember the size of the allen hex either.
 

COPPERHEAD85

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So you have to take it off.............tweak it ...........put it back on and run it to check the adjustment?
Thats jacked up.
 

Explorin94

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So you have to take it off.............tweak it ...........put it back on and run it to check the adjustment?
Thats jacked up.
No actually you don't. It is kind of a PITA but you can do it without taking it off. Go buy a set of long allen wrenches and you should make it where you want to be. Once you get there turn the screws in and then back them out 1 1/2 turns.
 

COPPERHEAD85

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Thanks!
Ill check it out on the old one I took off.
 

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