So I was having major issues with my quadrajet and instead of taking on the daunting task of rebuilding a carb foreign to me in two days I decided to re-jet and rebuild a 650 carter afb I had laying around. So everything went smooth the floats are adjusted properly everything is in right but now the truck wont idle and you have to feather the gas to keep it going. It has no choke as it originally was off a circle track car and it ran fine on my 350 with no choke just a little cold blooded in the morning, but if i stick the choke closed now the engine idles but even if I wait until it hits temp as soon as I open the choke back up it sputters and dies
Put the stock jets, springs and rods back in it as the baseline and adjust/tune from there. Changing the calibrations w/o a baseline to work from is useless and will only serve to confuse you. After baselining it, change things one at a time using the performance and plug color as your guide.
Set the idle mixture screws to give the highest idle speed or highest vacuum reading if you have a vacuum gauge.
Your carb is very close to an Eddy carb. Rods, jets and springs interchange.
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