I have a 41 ford with a 99 LS1 , 4L60 from a Vette, all stock. Runs great. The ECU is being limited to 80 mph. The donor car had active suspension and from what I've read, when there is a problem with that system, a warning would come on the dash and the tell you the speed was limited to 80 mph. I assume its being limited with the throttle body/TAC module. Of course, there is no longer any active suspension or traction modules. Can someone perhaps provide some insight to this dilemma?