General Category > Quadrajet Carb Talk and Tips

Jets and rods after engine rebuild

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eightballz:
Hey guys,

heres my set-up. should i go bigger on the jets/rods/hangers etc? what modification would you do to the qjet?

- 455cui .030 over
- stock toronado low rise intake
- stock toronado exhaust manifolds
- stock dual exhaust
- stock Qjet 7040252: .070 primary jets, primary metering rods "520", secondary hanger "E", Secondary metering rods "AU"
- CR 10,25 : 1
- edelbrock alu heads - intake 2.125 exhaust 1.625
- Eagle H-Beam Connecting Rods 6735O3D
- ICON Premium Forged Pistons IC886-030 + Rings
- harland sharp 1.6 roller rocker
- Comp Cams Custom Ground hyraulic roller cam 232/236@.050 on a 114 - advanced 8°

thx

Cliff Ruggles:
I would install our .071" jets and .043" tapered metering rods, employ the APT if you can get it out of the baseplate, and smaller DA secondary metering rods.  Put one of our kits in the carb, and we'll also supply a PP spring for what you are doing.....Cliff

eightballz:
wow nice..thank you. sounds like a good starting point.

gonna check the ATP soon...but for now i'm struggling with the needle seat, which seems to be "pressed in"-style. its got 2 o-rings. now i know why setting the float level was such a pain in the rear!

i guess the threads were stripped so the rebuilder drilled it out.

time for a heli coil or better get a new bowl?

429bbf:
i believe some carbs come that way . the 1967 buick i worked on had the same setup . cliffs kit had all the right stuff so i didn't need to do any modifying.fwiw

Cliff Ruggles:
Correct, the carb has been commercially "remanufactured" at some point, and it's common for them to bore out the threads and install one of those POS pressed in deals....Cliff

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