Quadrajet Problem Solving > Quadrajet Parts and Numbers

17059284

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passthebuck:
Hi all. I have a 327 bored 60 over with Trickflow 1st gen heads, performer intake & @.050 in. 194/204, Lift .398/.420 cam backed by a 700r4 and 3.08 rear gears with a 29" tall tire in a 4000lb truck. It has a quadrajet carb with number 17059284 & 0749 CBY under that. I just installed 1 5/8 headers and a true dual exhaust & now it surges/stumbles at about 1/2 throttle to full throttle. It had manifolds and a more restrictive exhaust. It was rebuilt years ago with shaft bushings. It ran great and pulled hard with the manifolds but it's not happy with the headers. The rods are stock but I don't know what they are. I suspect that either the primary rods/jets and/or piston spring are too lean & I have your book on order Cliff. I want to get a good baseline (not falling over itself) so I can start to tune for power.

My questions are:

What is my stock jet and rod (primary and secondary) set up?

Where do I start & where do I go from here?

Is this a good carb for performance?

Do I want to install the APT screw?

I just discovered this forum & I'm already impressed. I look forward learning a ton from all the quadrajet gurus here. Thanks in advance for your knowledge!

Greg

billy 2:
Welcome to the Forum, The 17059284 carb was used on the cars sold in Canada. The primary rods
were 51 and the jets 77, secondary rods are CH. And I would install an ajustable apt screw. It helpswith the last bit of fine tuning. It sounds like you're runnig out of fuel under a load. Cliff will help you with set-up of the carb.
billy 2

Ethan1:

--- Quote from: billy 2 on June 19, 2012, 06:34:21 AM ---Welcome to the Forum, The 17059284 carb was used on the cars sold in Canada. The primary rods
were 51 and the jets 77, secondary rods are CH. And I would install an ajustable apt screw. It helpswith the last bit of fine tuning. It sounds like you're runnig out of fuel under a load. Cliff will help you with set-up of the carb.
billy 2

--- End quote ---

 Yep. What I found as well. As noted, an adjustable APT screw would be great to have. Cliff will help with the other questions. :)

Cliff Ruggles:
I'm not familiar with that carburetor number, but it's most likely a large main airbleed model.  It may help to install smaller full tapered primary metering rods to get more control with the APT system.   Probably going to like some smaller tipped secondary metering rods as well.....Cliff

passthebuck:
Cliff,

Do you have any recommendations as to what rods to start with, or should I repost in the tuning section of the forum?

Greg

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