Fuel and Air Screws - how to find the proper settings?

Well. Pulled the wire and there is no resistor added in the wire. So I can only assume the resistor/resistance is built into the ignition switch. I cannot believe GM used the wire size for the resistance drop from the ignition switch to the block at the firewall. All the wires coming out of the ignition switch are the same size - looks like all 20 gauge. I tried using the choke solenoid as a 12V source but its connected to ignition-1 power position - which does not receive power when in ignition-2 (starting) position. When tested during ignition-2 position the choke solenoid was only getting 300MV. I also tried the power lead to the wiper/washer and this power seems to also be connected to ignition-1. I see 12 volts at ignition-1 then drops to 300MV when in ignition-2 (starting position.) Frustrated . . I am going to open up the ignition switch. More to come. :confused:
 
Opened up ignition switch and nothing. No resistors. So, the resistance is coming from somewhere else and feeding into the Ignition switch during the starting stage. Ahhhhhhhhhh:mad:
 
the wire is a resistance wire, read the link I posted about the HEI conversion, try an ohm meter on the wire
 
I read the link. I ended up taking a good amount of that wire out of the car. I have about 2 foot in my hand - about 2/3rds of the entire length - I left a little at the ignition. I tested the wire off the battery and read 12.62 volts at the end of the wire. I also tested the Ohms and it gets down to .1 (which is the same I get of a 10 gauge wire of the same length.) Not sure where to go from here. I am thinking about installing a voltage RELAY .:o
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Update. I installed a 4 pin Dorman relay switch. One pin to ground. One pin from battery. One pin to HEI. One pin connected to both wires coming from ignition. Works like a GEM - 12V to my HEI all the time. Now I am able to tune in the fuel and air screws along with the idle. All Good!!!!! :cool:
 
where there is a will there is a way
 
j5ball, how did you set up your relay? Someone on another forum told me to do exactly what you did. But I'm not sure where it all plugs into the relay. I wanna be sure so I don't fry anything. Thanks.
 
There were 4 pins on the relay I installed. On the back of the package is where the descriptions of the pins were. Here are the numbers on the back of the package on mine - and on the relay switch itself.

#85 terminal for relay ground wire - I hooked directly up to ground on battery. #87 terminal from power source - I hooked directly up to the positive on battery.
#30 terminal for lights or horns - I hooked up to the HEI.
#86 terminal from switch - I hooked up the two ignition wires from the starter switch.

I don't know if all 4 pin relays have the same pin #'s or not.

Hope this helps. JIMB
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Well. I ran into someone who had a simple answer to the issue. There are two small posts on the starter. One of the post connects to the alternator. The other post is typically not used. But here is where it could be used. This post carries 12V AFTER the car is started. So, you are suppose to be able to use this 12V line to supply voltage to the HEI distributor when the car is started. You still have to use the 12V from the original setup to actually start the car. I have not actually tried this. The guy who shared this with me seems to be a Pontiac expert. Thanks . . . JIMB
 
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