General Category > Quadrajet Carb Talk and Tips

Loses 30 hp with air cleaner?

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qjetsrule:
what was done to the quadrajet? I hope it's not the one you're showing in the pictures.

77cruiser:
That would be for the sleeper look  ;)

Just this.  http://myweb.midco.net/77cruiser/Q%20Jet%20E%20Tubes-1.jpg

Cliff Ruggles:
If you are seeing a power difference and fuel curve not smooth or out of range the q-jet isn't up to par or fuel delivery inadequate for what you are doing.

I've been on the dyno with quite a few engines over the years, and have yet to get outrun by a Holley or anything else on a dual plane intake.   On single plane intakes it takes at least a 1" spacer to run with a square flange carb as the huge secondary plates stick too far into the plenum areas when using a spread bore carburetor.....Cliff

qjetsrule:
did you try your combination with a filter lid such as a k&n? it might help if you have low hood clearance and require a drop base air cleaner. good luck

77cruiser:
Yup we tried the filter lid K&N can't remember if we tried it with all the bases though.

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