Dim efi

The Commander 950 can indeed control spark. Only reason I went to the HP (and nearly and probly "shouldha" gone MegaSquirt) is to get the "autotune" feature, as with no dyno time, and now one to ride shotgun and play with the laptop, I was about at the "max" of programming the 950

I also have two of those ECUs but I've got a fair amount of money into them.