Noble; The TFI is the most recommended by members on this forum. There's been MUCH discusstion, how to and testimonies. Look in the self help area or search under EFI (I think).
Yes, the Dobeck TFI is probably your most economical & easiest to use unit on the market. Best of all, you don't need to connect anything to it for adjusting.
Put one on my '99 Ultra when I did the roller chain conversion. Great product, good tech support, easy to install and adjust, great performance, and cost effective. Would highly recommend.....