Topic: Electric Choke Conversion

[Grand73Am]

It goes directly onto the intake manifold, and the gasket goes on top of that.

[Grand73Am]

Ok, carb is on and all ports are plugged.  The secondary is connected to what I believe is manifold pressure.  Car runs as bad as it did before I went to this electric choke.  ugh, I hate carbs

Can you describe how it's running bad? What's it doing?

[N PRGRES]

Well I assumed it would start and hold the idle on it's own without me having to play with thr throttle but I have the gasket installed wrong so it might have an air leak

[joe d]

dave, the thingy behind the choke is the choke pull off and it has to have vacuum to pull the choke off the plate between carb and manifold must have a gasket between mani and plate and plate and carb, when the car is idling lay your hand over the airhorn as to sufficate it, do the rpms increase? if yes you have a vacuum leak if not then maybe you just need to fine tune the choke and air fuel mixture, does it run bad cold or all the time? as stated earlier if it ran bad as pictured then you have many vacuum leaks and i did read that you have now plugged them all, but make sure your vac advance is connected and the choke pull off

[N PRGRES]

Ok the choke pull off is connected, I need more hose for the vac advance. 

Not sure if you can see in the pic but there is a very thick gasket (it's the grey purple thing under the carb) I got from cliff ruggles.
 

[joe d]

hook that up and i saw your last post about having the gasket on wrong so fix that then check it for leaks, also preset the choke cold with slight tension to close the airhorn plate and tension check it, should have just a touch of tension to openb and close with your finger, make sure you tighten the screws on the choke aftyer you preset it

[N PRGRES]

I'll mess with it in the morning  thanks

[joe d]

turn the trim screws all the way in then 3 full turns out and then set with a vac guage

[joe d]

yes morning is best so you can preset the choke

[N PRGRES]

Whats a trim screw and I don't own a vac gauge

[joe d]

BTW where is the hot lead to the new electric choke

[joe d]

air fuel mixture screws on front of throttle plate (base) at 7 o clock and 5 o clock

[Grand73Am]

He means the idle mixture screws...the 2 in the front. You can screw them out to the point where you get the highest vacuum if you had a gauge. A gauge doesn't cost much or you might could borrow one from Autozone with their lending program.

From the factory, there's no gasket between manifold and plate. I know it seems odd, but it's true. Some people leave out the plate and just use a gasket.

I suggest running the vac advance to manifold vacuum. The idle may be high when you do, but you can idle it down. Before the choke warms up, the fast idle screw under the choke will govern how fast it idles, so you can adjust it there. Then when it warms up, and idles down, you can adjust your normal idle screw on the driver side.

[Grand73Am]

By the way, it should idle high when it's cold, and the fast idle screw under the choke is where you adjust how fast it idles when cold. I like about 1200 rpms. Factory is a little higher. When it kicks down to normal idle, you can adjust normal idle to about 750 rpm in Park and when you put it in Drive, it should be about 600.

[N PRGRES]

By the way, it should idle high when it's cold, and the fast idle screw under the choke is where you adjust how fast it idles when cold. I like about 1200 rpms. Factory is a little higher. When it kicks down to normal idle, you can adjust normal idle to about 750 rpm in Park and when you put it in Drive, it should be about 600.

ohhhhh maybe thats the issues, it doesn't fast idle so maybe that screw isn't set at all.  By vac advance you mean on the dizzy right?