Personnaly I would stick with the Quad. $14 for a rebuild kit. Might need to have a machine shop sleeve the shafts. As long as sombody didnt; mess with it allready and overtighten stuff and warp the casting why change?
Stock q-jet will hadle 750 if you can build the motor to do it but if you motor only needs 500 then it will only provide 500. That's the great thing about them. They adjust to engine demand. I got Rochesters on three right now and the new one is still 20 years old. If I'm driving the truck daily it starts first try. It starts better then my Fuel injected Suburban.
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Grim-Reaper
70 Pontiac LeMans Sport Convertible, worlds longest resto in progress
Looking for 71-72 2wd Blazer or Jimmy Project
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