Need carburator setup for a stock 460

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Feb 17, 2006 | 09:45 PM

toddn78

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From: Hephzibah Ga

Need carburator setup for a stock 460

I have a new ford factory remanufactured 460. It has a holley 750, eldebrock intake and l&l headers. Does anyone know a good carburator setup for this motor. It was running really rich with the 70 jets that came with the carb. so my mechanic took them out and put 67s in it. Now the motor is not running rich but I lost a lot of power especially when i pull my camper. Does anyone have any suggestions.

Feb 18, 2006 | 10:05 AM

Putt

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From: Colville, Washington

Which Holley? I expect a List 3310? A change of three jet sizes is not enough to go from really rich to lean enough to cause poor power. Has anything else been adjusted or changed? More info on how it runs would help.

Feb 19, 2006 | 10:53 AM

LxMan1

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From: Louisville,Ky.

Put an Edelbrock 600 on it.

Feb 19, 2006 | 06:26 PM

toddn78

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From: Hephzibah Ga

I,m not exactly sure but it has an electric choke so i think it is a 80508s or 80783c. Every since we put smaller jets in it the truck jerks when i change gears where it use to be smooth. I pulled my new camper home with it the other day and it just did'nt feel like it had the power that it should. I took off at a red light pulling the camper and kinda got on the gas alittle hard and all the sudden it was like the motor just ran slat out of power and i had to get off the gas and start over. I was'nt on the gas that hard.Is the problem between the seat and steering wheel?

Feb 19, 2006 | 07:41 PM

LxMan1

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From: Louisville,Ky.

Check the spark plugs. See what color they are. If white, then it is too lean and you need to go back up on the jets. 72's should be about right on the 460. It sounds like it's running too lean to me.

Mar 21, 2006 | 08:48 PM

toddn78

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From: Hephzibah Ga

I called summit and they suggested I down size to a 600 or 650 . They said the smaller carb. is better for towing and off-road. Is this true.

Mar 21, 2006 | 09:01 PM

KubotaOrange76

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From: GA

your way overcarbed.....run a 600 edelbrock or holley

i prefer q-jets but i guess im the only one who knows how to tune one.. i especially love them on stock motors