Quadrajet Problem Solving > Dialing in your rebuilt Quadrajet carburetor

SP2P Intake

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optomatt:
I've read or heard there is an issue with the SP2P, maybe it could still be worth something? I bought a 17059504 listed as a 79 305 carb, I want to maximize torque on a 79 305 that I am rebuilding and wonder if there might be some suggestions to tune in the 17059504 to an SP2P?

optomatt:
I should have added, stock compression with a SUM-1101 cam.

Cliff Ruggles:
The SP2P intake isn't worth two squirts of duck poop.  A smaller intake isn't going to help anything anyplace, same as installing a larger intake than what is needed.

The engineers did an excellent job with the stock factory manifolds on the SBC engines, I would use one of those instead.......Cliff

optomatt:
Well, I guess we will just change jets until we don't see any carbon on the plugs. But then, we could always go back to the 2 barrel it came with if the 4 on the sp2p doesn't work out. Got a 350 goodwrench from the 75 nova this 305 from a 78 Nova is going into., we were thinking of doing a 383 with that goodwrench and following all your recommendations in your quadrajet book. But we wanted to try this one for max mileage per gallon for the wife's daily driver. We'll see how it works out.

old cars:
You have a 350 Goodwrench? When it comes to torque there is no replacement for cubic inches.

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