1984 2.8L V6 questions

hey everyone, I have a 1984 Chevy S-10, 4-wheel drive, 2.8L V6 - before I got it, I think someone that did know what they were doing got ahold of it - and changed some things that are causing problems now - and
trying to get it back and running like it should be.
1. I have no emmision contoll on the truck - it had removed before I got it - do I need the efe heater - and could it cause a rich running condition?
2. The electric choke wire has 12V oni t when it is unhooked from the choke - when I hook it up - it has 0 volts on it - I ran a new wire from a different source, and now has 12V anytime the key is on - is this the way it should work?
3. In my book for the truck, it says I DO NOT have a mechanical vacume advance - but thier is one - where on the carb should the vacume line be hooked to? And does anyone have a good diagram and or pictures of the vacume hose routing?
4. the primary and secondary vacume brakes on the left side of the carb - what are they - and what do they do?
If anyone can help me out here - I would be greatly appreciative - I am sure the vacume hoses are not routed correctly - but just don't know where they are supposed to go.
I am getting very poor gas mileage at this point - but that before the issue with the choke was discovered, so hopefully that will help.
Thanks,
Scott
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.