If your PCM supports a chip on the J3 port, you are golden provided you can find a tuner familiar with Speed Density Ford EFI. What is the Catch code or Ford part number of your PCM? Just want to make sure it really does support a tuner or chip on the service port.

 

This is the 1994 SD EFI 351w EEC I currently have in my truck.

 

The KID1 catch code is not listed on Ryan's site, not sure if it supports programming through the J3 port. Whomever you are thinking to use for a custom tune, you may want to check with them.

 

OK thanks. Hopefully someone carries a tuner for it. I am just wanting a mild 351w, so I am not really wanting a Mass Air conversion. But if I have to I will.