I am converting TPI to carb, with a hei vac advance distributor. which tpi wire is tach? i have to hook up power and tach, what does the tpi tach wire look like, what color? pics? thanks

 

It's one of the wires going to the coil. White with a stripe, if I remember correctly what I've heard ('86 is the latest I've dealt with personally).

If you got a small cap, separate coil vacuum/mechanical advance distributor, you could re-use your stock coil.

 

actually it's a '87, i will look for that color wire, can anyone confirm? I have a large cap version...

 

I know. That's the year they went to the small cap distributor with separate coil. I haven't personally worked on '87-up 3rd gens. Therefore, I can't go out to the car and look at the wire for you.

I know this has been discussed on the Board before. Otherwise, I couldn't even offer what I have to this point.

Have you tried searching for "tach wire"?

 

alldata wont give me an exact location of where it plugs in at but the electrical diagram is stating its an all white wire specifically it states .35 WHT one one side of the wire and 121 on the other side of the wire shows it plugs into the 32 pin c-d connector at d4 (staring at clip not ecm with the lock clip on left side it would be 4th down on the right side) on the ecm also states pure white wire

 

large cap HEI distributors should have a white and red wire connected into the cap, the white wire is your tach lead, red is power. the other 5 wires that come from the base of the dizzy are for your timing advance and ICM, which is not needed for carb.