Complete classic Fast Squential EFI


Well-Known Member
Classic Fast EFI

Relisting because I forgot the 3 bar map and program.

Classic FAST with adapter harness, Wide band O2, 3 bar map, Sequential option W/individual cylinder control. Comes with my 96#/hr injector program
$800 + shipping.

After observing other for sale units advertised @ 900+. I believe this to be a very good price.

Please PM if interested
Allan G.


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I take it that the "ECM like" box is the adapter harness that plugs into the factory harness correct? Does the FAST ECM get its power source through the adapter harness or does it have its own positive and negative leads that go to a direct power source?

John Martin
1986 Buick T-type
9.71 @ 140