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Thanks for the great input guys

Just so I'm clear, idle A/F is accomplished via the IMSs. Cruise A/F tuning is accomplished via the rods and jetting? What gets changed in what order? Does changing rods/jetting change cruise or heavy throttle? both?

THanks. Trying to wrap my head around carb theory after I started most of my automotive life adding EFI to carbed applications



dont forget you have springs that lift the neddles out of the jets before swaping jet and needles around they have larger squrters also for more tuning.

my 440 dialed right in with my 1405,have to play with it just a little when cold but cleans right up at 180*.

holds 20" of vac in N at 850 rpm,drops to 18" at 750 rpm in D

has a slight ping on cheap gas and a WOT pull

IIRC,I have the timeing set just a hair of the timeing tab..12-14 I estamate eyeballing with the timeing light.

I got a few extra parts with a carterbroke carb I got from dragula if you need some springs or larger squrters and couple extra needles?jets also. LMK

Last edited by scratchnfotraction; 10/27/11 07:36 PM.