Holley carb help
March 22nd, 2010, 04:08 PM
#1
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Join Date: Mar 2010
Posts: 33
Holley carb help
I have a 425 old with a dual feed holley on in i want to rebuild it but cant find any info the numbers are 5271 33101 on front bowl 7003 33101 on rear bowl and on the top it has 6R 2762 if anybody could please help it would help alot thanx
March 22nd, 2010, 07:47 PM
#2
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Join Date: Feb 2007
Location: graham,wa
Posts: 277
the 7003 33101 is a ford 780 carb....i believe its a 780 holley,list number should be 3310-1, the list number 3310-2 and -3 are 750 carbs without replaceable secondary jets.. great carb for the 425...the list number should be on the choke horn...
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