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Your current problem is not related to the alternator. Your battery is either dead and/or you have a battery cable problem. What kind of battery charger do you have? It could be a POS and not charging, seen that before. Swap in the battery out of your other vehicle and see if it starts and check...

Keep posting your progress. I ain't likely to do this change but it is interesting. Ever thought of going to a Megasquirt type ecm?

As stated the grounds might very well be bad on the horns. Easiest (not easy) way to get to them is from underneith, you might be able to get to them better by removing the side marker lights. Use a brake light bulb with a couple wires on it to check for voltage at the horn connectors, that will...

The C3 had a lot of heat sources so there is no 1 majic bullet to cool it off. 1 You have to fix the ac system including sealing the ducts so they do not leak 2 Make sure all the ac doors work as they are supposed to 3 Use some type of heat shielding on the floor: Nuprene, Dynomat, Reflectix...

It goes into the gromet in the firewall there by the distributor and on into the vsc switch on a duct in the dash. Here is a drawing

I got to agree with some of the guys. Change the exhaust forst and see what that gets you. For any other performance mods you will need upgraded exhaust anyway, so do it first. If you don't have to deal with Smog peel off the air pump and maybe the egr, I don't it really robs much power at all...

The motor has 2 connections, 1 is up and 1 is down. Use the ohm meter to check from 1 terminal to ground and then the other to ground

Welcome aboard Bud

Well, a few things I have learned dealing with my 81, the carb is a 750 cfm rochester quadrajet, the primarys happen to be computer controlled, the secondaries are just like the older ones. The CCC WILL keep up with a seriously modified motor Dual Exhaust and hy flo cats are a minimum for ANY HP...

Just make sure its a 3 wire alternator, you don't want the 1 wire

Carver, the best advice I can give you is do some research and find a Good Reputable shop or do it yourself. The GM service manual has a pretty good description on the adjustments. Lars the the resident carb guy, unfortunately he doesn't do these carbs. I'll be doing mine soon as I get the...

Here you go

Carver, changing the carb for annother of the same type is no more or less complicated than any other carb. If your wanting to swap it for something else, you would need to also replace the distributor for one with a vac advance unit on it and you would need to modify the TCC lockup circuit...

;LOLWell, at least you got it figured out! Congrats! I am laughing because I am getting my new Vette 1 part at a time too, annother $100 in stuff ordered today

To your original post, yes the tranny not locking up will cause more heat, so make sure it is working correctly

here is a pic you can see the seals on top of the ductwork

OK, your going to need to look at the ignition switch. Its on top of the steering column, sounds like it may have some crud in it making it intermittent. I'll take a look at mine, give you a little more info

Here is the power distribution drawing for the ignition switch See the Yellow wire? That runs the radio and the pulse wipers. Is the Radio fuse hot when the key is on and off when the key is on?

you can get it on ebay, its about $160 for a bucket, I haven't found a source for small amount, but I keep looking