I have an 86 IROC 305 and I am looking for the ".ecu" file so I can use "WinBin" to edit my chip.

Any help finding this would be appreciated Thank you.

 

Good luck on the '86 .ecu files. I got all kinds of them but not for an '86. If your wanting to burn your own chips you would be better off using the $6E calibration from '89. I have an '86 ($32) and changed to the $6E,it works great. There is alot more options and help for it. Almost all the MAF guys at the Prom board are using it.

 

I agree. In fact, even if you use TunerCat you are better off using the $6E. As pointed out, it is far better defined thus making it easier to tune.