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Author	Topic: Carb jet question
69maverick Gearhead Posts: 699 From: Thomaston,CT. Registered: Jan 2001	posted 03-26-2001 08:07 AM I have a 650 Holley double that I am going to run on my sons 289 it will have a little bit of a cam headers and a Weiand X-CELerator intake 9.8:1 comp. auto and 4.11's The carb has 67 prims. and 78 secondarys I think there to rich? This combo has not be ran at all yet! He has a 600 if this one don't work out. But thats alot more work for me. I would love this one to work! [This message has been edited by 69maverick (edited 03-26-2001).] IP: Logged
SteveLaRiviere Administrator Posts: 21832 From: Saco, Maine USA Registered: May 99	posted 03-26-2001 03:06 PM According to the Holley web site, most 4777s came with 67/73 jets. I'd start there and see what the plugs say. ------------------ '72 Mustang Sprint Coupe 351C 4V/FMX/4.30 Trac Loc '94 F-150 XL 5.8L/E4OD/3.55 Limited Slip '97 Probe GTS 2.5L Disposable Commuter "Keep your driveway all Ford!" IP: Logged
69maverick Gearhead Posts: 699 From: Thomaston,CT. Registered: Jan 2001	posted 03-26-2001 06:11 PM Steve this intake is more like a small tunnel ram than a single plane! I was thinking of using 4 of the same jets like 70 or 71? What do you think? IP: Logged

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