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The Water Cooler
General Discussion
tuning a quadrajet
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<blockquote data-quote="swampratt" data-source="post: 2845813" data-attributes="member: 15054"><p>I never quit running them..I remove the vacuum pot and tune and you can eliminate the bog.</p><p>Well that and all my engines have had high compression and small well ported intake runners to keep velocity up.</p><p></p><p>I actually liked the frowned upon carter ones..No problems with the Rochester ones either .. just make sure you can tune.</p><p>A lot of the bog was the anemic timing curves.. couple that curve with vacuum advance that drops out when you floor it.</p><p>WOW 28 total timing when i most need some extra power..I really hated GM engineers for some of the odd ball stuff they pawned off on us.</p><p></p><p>You guys that run the Q jet Look at where the secondary fuel shot comes from. </p><p>The 2 tiny holes above the rear air valve door.. You know you have many different tops and some of those have the hole way above the door and others the bottom of the hole is just below the air valve door.. the fuel shot on that one comes in sooner.. helping to cover up the so called bog.</p><p></p><p>You can fill it and drill it lower.</p><p>You all must also be familiar with the lettered secondary hangers.. you can drill extra holes in those also.</p><p></p><p>You can have a lot of fun with the Qjet.[ATTACH]53591[/ATTACH]</p></blockquote><p></p>
[QUOTE="swampratt, post: 2845813, member: 15054"] I never quit running them..I remove the vacuum pot and tune and you can eliminate the bog. Well that and all my engines have had high compression and small well ported intake runners to keep velocity up. I actually liked the frowned upon carter ones..No problems with the Rochester ones either .. just make sure you can tune. A lot of the bog was the anemic timing curves.. couple that curve with vacuum advance that drops out when you floor it. WOW 28 total timing when i most need some extra power..I really hated GM engineers for some of the odd ball stuff they pawned off on us. You guys that run the Q jet Look at where the secondary fuel shot comes from. The 2 tiny holes above the rear air valve door.. You know you have many different tops and some of those have the hole way above the door and others the bottom of the hole is just below the air valve door.. the fuel shot on that one comes in sooner.. helping to cover up the so called bog. You can fill it and drill it lower. You all must also be familiar with the lettered secondary hangers.. you can drill extra holes in those also. You can have a lot of fun with the Qjet.[ATTACH=CONFIG]53591[/ATTACH] [/QUOTE]
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tuning a quadrajet
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