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Old 10-07-2019, 09:12 PM
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footjoy footjoy is offline
Chief Ponti-yacker
 
Join Date: Oct 2009
Location: KC
Posts: 977
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Quote:
Originally Posted by 68lemans462 View Post
Your goal in doing this is to gain 2MPG? Seriously? You could likely get through this and end up with the same MPG and a significantly lighter wallet. The carb is just one element of the tune. Changing out a carb isnt necessarily going to resolve your MPG issues. There is likely much more going in your situation than just a mis-tuned carb. You also need to focus on your ignition system (initial and total timing), timing curve, vacuum advance to start with.

To improve MPG on my old Pontiac I leave it in the garage and drive a vehicle that gets 20+ MPG..

Oh, and if you do decide to rebuild the Q-jet, take Rocky up on his offer. He invited me to his house ages ago and we put my distributor on his machine and curved it. Rocky is a super nice and very knowledgeable Pontiac guy.
You are absolutely right if money was the issue. But it is not. I love tinkering and learning. With the overdrive it should get 17-19 mpg. I have learned so much about vacuum advance and timing and now carburetion.

PS I pmd Rocky this morning, waiting to here back.

Thanks
Greg