Quadrajet Problem Solving > Diagnose a Quadrajet carburetor problem

301t Won't idle

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canadian nascar:
 front choke pull off is 5 seconds to fully release, this is some of the problem. how do i adjust this?

thanks Kevin

canadian nascar:
I was wondering if all you do is drill out the end that the vacumm line goes on, the larger hole allows more air to return. used as a air flow restrictor?

thanks Kevin

Cliff Ruggles:
We sell them already modified, really nice units with the straight inlet for easy access to the restriction......Cliff

canadian nascar:
Hi Cliff,

I am getting closer, I recieved the choke pull off  3 seconds and it helped considerably,i can get to the secondaries during a brake stand now.

my next problem is I have a bad lean bog going to the secondaries, this was not a problem withthe old turbo, I have adj the sec. spring tension all over the place till the flaps wouln't open all the way.

I have read Cliff's book and he filed the sec. flaps to allow the secondary accelerator ports fuel to flow better so I did this and opened the ports up. stock size hole was .059 now .070 and still major lean bog with spring tension not helping. and cleaning all ports with brake clean.

How big can I go with the ports?

also the float is 5/16'' as 1/4'' would flood the carb at idle, should I raise it a little more?

thanks Kevin

canadian nascar:
Hi,

just read that stock float height is 15/32, is 5/16 too high and causing problems?

thanks Kevin

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