Jet sizes
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Joined: Nov 2003
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From: Concord, New Hampshire
Jet sizes
Does anyone know the jet sizes for the stock carb. on an 87 f-150, 351w? i think some one may have changed the sizes so im trying to figure them out any help would be good.
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Joined: Dec 2003
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Don't know off the top of my head what you would have for jets but it's not to hard to find out. If the carb is a Holley (or autolite) then yes the jets hide in the bowls. Remove the four bolts (one at each corner) and pull the bowl straight off. the jets are the two round things along the bottom of the metering plate that look like big slotted screws. Back them out and they will be marked as to size. Be warned that Holley jet numbers do not correspond to actual size. Ie: a#65 jet is not .0065, you will need a chart to cross refrence jet number to actual size.
