<VV> Judson Carb advice
Eric S. Eberhard
flash at vicspdi.com
Tue Jun 13 20:18:26 EDT 2006
Everyone,
I am looking for some advice on the carb for my Judson. I rebuilt my
engine on my 62 sedan with much larger displacement (175 ci or so)
and 260 Cam from Clarks and roller rockers and lots of other cool
stuff. And with the Judson on there I still have the same problem I
had with the old and tired engine (no surprise) ... I can adjust so
it runs right at low-slow throttle off the line and is starving with
foot-in-it high rpm or I can adjust it so the high rpm works great
and it stumbles/dies off the line. It is a miserable Holley 94 2
barrel -- nicely rebuilt, but still sort of a pain. Not very
adjustable either.
I am contemplating using a Holley 390 cfm 4 barrel (the 94 is 300
cfm). I believe this the carb many use on 140's with center mount
carb and also occasionally for Spyder conversion. It is very
adjustable. There is an adapter to adapt the 3-bolt 94 manifold to
the modern 4-bolt Holley pattern. So it looks like a good idea.
Fat chance -- but has anyone tried this or any other carb on a Judson?
Can anyone tell me how adjustable the 390 is with all the jets,
springs, cams, etc. one can change? Is it hard?
Do you think it is a good match or a bad match or ???? What are my
odds of success if I dink with it for a few months?
Any (nice) comments appreciated, thanks all!
Eric
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