P.J., My Dad raced (street and track) with the salesman and mechanics from the local Chevrolet Dealership (Community Chevrolet now Ross Downing Chevrolet) where he bought his 1968 SS 396 Chevelle L78, tripoli turquoise with black vinyl top at. My Dad raced this car and drove it every day. However, I know for a fact that GM reps do stop in at Ross Downing and record the vins of any Vettes that are in the service dept. with any warranty voiding modifications. I guess that the GM reps that liked cancelling warranties could not be every where all of the time. Also, it is my understanding that Baldwin Chevrolet honored the warranties on the Phase III L78 cars.
