Quadrajet Problem Solving > Diagnose a Quadrajet carburetor problem

7040273 Carb poor idle

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Cliff Ruggles:
Why is the compression ratio 9 to 1?  It should be much higher if it's a "stock" Ram Air build....

Kenth:

--- Quote from: ArlingtonJudge on August 02, 2025, 07:31:36 AM ---This is the cam I removed and replaced with the HC-56

--- End quote ---

Looks like a Crane H-294.
Brand   Model   AID   AED   ID050  ED050   IL1.5     EL1.5   LSA
Crane   H-294   294   304   238     248           .500   .530           114

ArlingtonJudge:
Guess i should not have used the word "stock".  Unfortunately I don't know much about the build other than hardened seats and bored 60 over. 

ArlingtonJudge:
Thanks Kenth - good information to know,  I searched every place I could think of and could not find any information on that cam

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