I can say that the Holley guy I deal with(Shawn or Sean)
really helped me out... they forgot a jumper plug with the
kit that I got.. it was for the mopar engines... they sent
the part out free of charge... after that they walked me
through the set up to verify what I had put in the ECU...
now I just leave the down load cable attached and just push
it up out of view.. that way I can down load anytime I wish
since this unit has a data logger built in
EDIT
Come spring time I will put on a crank trigger so it
will have the timing control... and I think I will put
on a couple more things to help... just for my own use