Quadrajet Problem Solving > Dialing in your rebuilt Quadrajet carburetor

Tuning advise

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afmuse76:
I know very little about Qjets other then how to take them apart and put it back together. I have a 17085226 off of my 85 K5. I want to put it on my street/strip truck. Here are the specs of my truck.
 406 sbc aprox 10.7:1/400+ hp
12cc dished pistons
63 cc Edelbrock RPM heads
RPM air gap intake
Comp cam solid roller cam
280/280 with .550/.550 lift
TCI street fighter TH350
14 bolt 5 lug 3.73 rear end.

I have rebuilt the Qjet and done the bottom leak check and bushing mod. Just need some ideas on rod and jets etc.

Cliff Ruggles:
Did you install one of our kits with the HP accl pump assembly and high flow needle/seat assembly?

It's going to need idle system modifications and some jetting improvements as well.  Excellent carburetor BTW....Cliff

afmuse76:
I haven't yet but it is at the top of my list this payday. I'm guessing your book also has info on the idle system mods? Any suggestions on assortment of jets to try? I'd like to order them the same time I order the HP kit etc.

Cliff Ruggles:
Take the carb apart, it should have "M" series primary rods which you will use over.  We will up the jet size one or two numbers, depending on what's in there, and smaller secondary metering rods.....Cliff

afmuse76:
Ok great. I'll get those numbers this week and hopefully call an order in to you guys Friday.

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