Alternative ecm & wire harness?

[Dog House]

Is there an aftermarket computer system and wire harness to use on an 89? I’m in the process of putting a Stealth Ram on my car with a small cap distributor and external coil and I’m finding a lot of bad wiring in my system (which has given me trouble) and would like to try something different if available.

 

[vetteoz]

Is there an aftermarket computer system and wire harness to use on an 89?

Plenty aftermarket standalone ,
both a harness to use your existing 165 computer or expensive computer/ harness packages like F.A.S.T EFI , Accel DFI
Stand alone do not integrate with factory wiring so you still need some of the original harness to run gauges and A/c controls

http://www.thirdgen.org/techboard/engine-drivetrain-suspension-parts/593941-accel-gen-7-dfi.html