Factory carb wiring questions

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hockeydad4-22
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Factory carb wiring questions

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Yesterday afternoon/evening we decided it was high time to replace the aluminum intake and Holley 4 barrel carb with one that is actually recommended for a ford 302 running at fewer than 3500 RPMs. We went back to stock.

Just a couple of questions if you all wouldn't mind searching the memory banks for the answers we would be very grateful.

#1. On the passenger side, both carbs have an electric choke. The Holley used 2 wires, a hot and a ground. The factory carb uses just one. Which is it? (I think I know but just to make sure).

#2. On the drivers side, there is what I can only assume is the cold / fast idle dohickey. It has a wire coming off it. What does this connect to? The harness on the engine does not have any unused wires in the area. This can be seen (barely) in the picture. The carb/manifold at the bottom is the one we are installing and said wire is at the very bottom near the throttle linkage.

Tonight we will be pulling the factory set up and doing it all again - when we fired her up - she seems to run fine but we have a leak at the front top corner (near the valve cover). So tonight - pull the whole thing again - clean everything again... new gaskets again.... new coolant again.....

Like Drew said last night: Just goes to show - if you don't do it right the first time - you get to do it all again..... Lesson learned.....

Again

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[color=#BFFF40]Greg

If you are the smartest person in the room -
You are in the wrong room
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hockeydad4-22
Official CCB Member
Official CCB Member
Posts: 2378
Joined: Tue Nov 02, 2010 12:11 pm

Re: Factory carb wiring questions

Post by hockeydad4-22 »

Learned a few things yesterday:

#1 - "Cold / fast idle doohicky thingy" is actually an anti dieseling doohicky/thingy... And it requires a hot when on wire.

#2 - distributor is actually pretty easy to install when everything is lined up correctly. Engine at TDC on #1 cylinder, oil pump rod in and straight, drop her in, slight twist and she just falls in place.... nice.

Drew's beast runs much better with the factory carb than it ever thought to with a Holley 4 barrel 600cfm. Have a heavy manifold vacuum leak - but she was to hot by the time we discovered it so that will be cured tonight. No big deal - the valve for the brake vacuum was not tightened in fully - just means have to disconnect and tighten her up is all - easy! Then final adjust timing and away she goes (I hope..)
[color=#BFFF40]Greg

If you are the smartest person in the room -
You are in the wrong room
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