Join Date: Dec 2012
Location: Gastonia, NC - Born & raised in Connecticut - 31 years
Mentioned: 1 Post(s)
Tagged: 1 Thread(s)
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As Bear stated, 750 CFM is not too big. Same as I had on my stock 350 I mentioned earlier. You can get a good rebuildable core cheap at most car swap meets if you go to these. Ebay has quite a few and one up there now is a rebuilt NAPA Q-jet for $111.00. There are many more cheaper that need rebuilding. You want to make sure you get the Rochester Q-jet and not the Carter. You also need to make sure that you get a Pontiac Q-jet so your carb/gas pedal cable will work with it.
Saw a video that was 16 minutes long on the web on rebuilding the Q-jet. Might give you and idea of what you are getting into OR as Bear suggested, either contact Cliff Rugles for a rebuilt unit, price on having your core rebuilt, or parts to rebuild yours. Shop around a bit. It is really not all that difficult a thing to rebuild. There are also several how-to books on the market on how to rebuild the Q-jet. You will find most members here advise any Pontiac Performance enthusiast to get a copy of Jim Hand's book How to Build Max Performance Pontiac V-8's. You can get it on Amazon.com and it has a section on Q-jet rebuilding and modifications.
You should be able to get a cast iron Q-jet intake cheap at a swap meet, craigslist, local trade paper, etc.. If it were me, I would not pay more than $25 for a Q-jet rebuilder core and then go through it -but I know what to look for and how to rebuild them so that's to my advantage. Last swap meet I was at had a ton of them in the $15 -$25 range. You can always get a cheap one, tear it down to see what your getting into and then decide what you want to do. Its all about fun and learning.