Gold Lifetime Member
Join Date: Jan 2005
Location: 2 Dog Town in West Texas
Re: 4053 Holley leak
I was about to say the same on jets, I run 68 for my 3500' altitude, you at 5500 may need less. I run a 65PV with my 288/290 cam , make sure your cam duration is not impacting this as well as timing.
Again, with motor running , check to see if fuel is dribbling on the back venturi clusters or even front. May have to back out those mixture screws to see it you have any impact here. Did you notice if you have the PV saver check valve in the base of the carb? One pop and the valve is gone if you dont have it.
Be sure to pull float site plugs and the fuel need to be at the lower threads of that hole.
Did you change any gaskets? Tear any? Any dried or shrivled? Even a 39 year old Holley will be as good as new when you tweak it correctly.
TC # 349
Zdld17:69 Z/RS,306, NOR141111, 9N554XXX, 12A, X3G, 59/59,723, AFR 195,CCC282/290HR, TKO 600, BU1122B1E Owner since Dec 1968
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