General Category > Quadrajet Carb Talk and Tips

9psi carb

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Vengeance:
I've read that the later quadrajets are built to handle 9psi and the earlier ones are built for 4.5psi. Can an earlier quadrajet be built to handle 9psi? Would one of your rebuild kits be sufficient for 9psi? Will a Wix 33041 return type fuel filter help alleviate some of the pressure?
The numbers on my carb are 17059253 0859 BZA.
I already have the 9psi fuel pump and don't want/can't afford to get the fuel pressure regulator.
Thanks.

tayto:
I can't answer your question, but I believe it is dependant on float height. A regulator is $30, not trying to be rude but if you can't afford that I suggested you find a new hobby

Vengeance:
After $3,500 for everything else and still needing to buy the carb rebuild kit anyway, no there is not an extra $30 to spend. Just spend the little extra $50 on the better gaskets; just spend the little extra $40 on the better fuel pump; just spend the little extra $150 on the better pistons; just spend the little extra $40 on the better timing set....no. All of the "just a little extras" is NOT just a little more. That just shows how short sighted people are. They can only see what's right in front of them.
I actually know how to plan, and refuse to spend the "little extra" if it's not necessary. That's how I can get a build done for $3,500 when the knowledgeable builders told me it would take $5,000 minimum.

Kenth:
Your Qjet #17059253 is a "late" style M4MC carb with good leverage on the inlet needle.
9 psi should not cause any problems using 13/32" setting on float.

Vengeance:
Thank you.

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