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#1
06-17-2006, 10:53 AM
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Carb selection help desperately needed
Hi guys, I am having an awful problem with carbs these days and I need some suggestions before I go any further. I have a 73 Grand Am 455 with the factory intake on it. I need a new carb for it, and to make a long story short, I have tried two new (reman.) quadrajets and both of them were junk right from the start, the last one had worn out throttle bushings right out of the box. I looked in Jegs and saw they had a Q-jet replacement Holley. I called and asked them about it and they said it should work fine, so I ordered it. Well, it would work fine if I was putting it on a Chevy, but it won't work on a Pontiac (wrong choke,no power brake vac,pcv port hits on vac port on intake,etc.). Bottom line is I need a carb and I can't wait to have someone build me a good Q-jet. What do you guys recommend that I can bolt on and be done with this? I don't care at this point what kind it is, I just don't really want to change the intake at this point, so if I need an adapter plate, so be it. I just want to drive my car. Thanks for any suggestions.
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#2
06-17-2006, 01:50 PM
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You can run that carb on a Pontiac. I have it on my 400 right now.
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#3
06-17-2006, 01:58 PM
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I saw that you were on another thread. What did you do with the pcv port on the front of the carb?
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#4
06-17-2006, 06:01 PM
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The pcv port is in the back of my carb. I screwed in a fitting and ran that to my power brakes.
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#5
06-18-2006, 09:51 AM
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Ok, I may have jumped the gun a little on the Holley. I didn't care about having a choke on it so that didn't matter anyways. I screwed the plug out of the back and put a nipple in there and used it for the brakes. Where I got screwed up on that was the instructions said that was for an A.I.R. system gulp valve, but I didn't think far enough ahead to realize it's still just vacuum(dummy boy). The only thing I had to modify was that port on the front, I trimmed it with a die grinder and put a rubber plug over it. The car runs good again!!! Seems so nice to be able to pull up to a stop sign and not have to use both feet. I'm sure I'll have a little fine tuning to do, but that's part of the fun. Thanks for the assist Mr. Milner, it is appreciated.
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#6
06-18-2006, 06:01 PM
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Good to hear you got it going! Have fun with that 455!
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