ignition problem

What did you expect? the EFI distributor relies on the computer inputs to manage the ignition timing. No inputs from working sensors and your ignition timing is all messed up.

If you are going to use a carb, do it right. Do not attempt to leave the EFI in place in an attempt to control either the electric fuel pump or ignition. Doing so qualifies you for the “Road Kill Mechanics Award”.


While you are at the electrical part, you'll need a Durspark or similar ignition system. The 85 Mustang GT 5 speed has a suitable Duraspark distributor with a steel gear compatible with the roller camshaft. Running a fixed timing setting is only for test purposes or for a race track only car. Don't try it on the street: the results will not be nearly as good as a properly setup Durspark or equal. Crane makes a really nice distributor for non-EFI applications. . See http://www.cranecams.com/index.php?show=browseParts&lvl=4&prt=127 for more information.

You may have taken jrichker's answer harshly, but I can vouch for both jrichker's knowledge on the subject (based on his thousands of valuable posts), and the Crane dizzy suggested. I use that distributor with a Crane HI-6 box on my carbed 85 and am very pleased with the setup. It's a little pricey, but it's certainly cheaper than a tow truck. Good luck and welcome to Stangnet.

I also have the crane dizzy and crane HI-6 box in my car and i like it. Had a msd setup in it before, after the box took a crap twice i put the crane setup in. MSD has gone to crap.

lol, I understand where you were coming from jake. I'm pretty sure you can use a TFI distributor somehow with a carb, but there are various things you need to modify, and I don't know how it's done, but it's certainly not worth using it. Do what these guys suggested.