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Discussion Starter #1
Do you have to use differnt floats when useing jet extensions? This is a Holley 650dp model 4777.I am haveing clearence problems with mine.
 

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Yes. Holley, (and other manufacturers), make special slotted, (cut out areas), floats. You cannot (without obvious problems), run standard/stock floats with jet extensions.
 

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I have the same carb and I got the Moroso(I think) slip on extensions. They are doglegged and elongated so they fit under the floats. They are still a tight fit to get the bowls on the carb. I noticed with mine that I had to jet up slightly because of the extensions or at least it seemed that way.
 

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Discussion Starter #4
Hottarod, I dont see those in the Moroso catalog.

Just for kicks, what what size jets, squiters etc does your carb have in it?

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1964 Comet 289 C4/3000 stall daily driver
TFS TW, Weiand Stealth, Comp XE268, Rhodes lifters, TFS roller rockers, Carter 625 AFB, Hooker SuperComps
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<font size=-1>[ This Message was edited by: dragman64 on 4/18/02 2:13pm ]</font>
 

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Rule of thumb is you should jet up 4 sizes richer when using jet extensions.


Also, most major carb modifyers/builders/customizers/ recommend the brass jet extensions, rather than the plastic slip on versions.............?
 
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