I put in an older FAST classic. I picked it up off a local and adapted it to a TFI distributor from a late model 460 big block motor. It works pretty good, the newer systems have a barometric sensor which makes a difference. I'm a little more versed in manually tuning it, so that was part of the draw for me. I'll try to do a video on my youtube channel specifically on the EFI system.
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