Cliff's Quadrajet Parts and Rebuild Kits
General Category => Quadrajet Carb Talk and Tips => Topic started by: streetjeep on March 22, 2013, 11:49:04 AM
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Received the Q-Jet book and looked at it. WEALTH of info!
Anyway. this might be more for Cliff, but I have a 7028212 Q-Jet that came on a 68 250hp 327 stock cr was 8.75:1. I am rebuilding the engine for my Jeep Comanche and want to use 87 octane, so try for right at 9:1 cr. I am using new Genuine Chevrolet Performance Vortec heads with 1.94/1.50 valves, and 170 intake runners w/64cc chambers. I'm looking at a Howard's Cam with the following specs:
Dur-INT 259 EX269; @.050-INT 205 EX 215. Lift w/1.50 rkrs-INT .420 EX .455. Lobe Sep-112. Cntrlne-108. 1000-5000 Smooth idle, Street, Towing, good fuel economy.
I have a ProComp 2007 dual plane manifold for spread bore, and it will have headers because it's going in that jeep.
So, rebuild this Q-Jet to stock specs, or should I modify?
Thanks in advance!
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That cam is pretty much the same as the generic 204/214/112 cams that are available. Should produce a very smooth idle with plenty of vacuum.
I would completely and correctly rebuild the carb to stock specs with one of our kits. Place it in service, and go back and address in areas that need help. It should be fine in stock form......Cliff
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Thanks, Cliff!