Frank and I are lucky enough to have an LSV = Lingenfelter Super Vette created by LPE for Larry. When GM saw the bowtie logo in the LSV emblem, they made LPE stop using the logo. the plan at the time was that all modified ZR-1s were going to be LSVs.
so really Larry had the only ones. 3 a 385, a 390 and a 368
so when I went up to visit Larry and bought his car, he gave me a bit of this same story that Jim is telling, plus one other tidbit. He claimed that when he took the ZR-1 back numerous times for "recalls" sometimes after flogging the car, sometimes for paint, quality control problems.
on one of his ZR-1s it came back the factory techs had put marbles in the frame. drove him crazy until he finally figured out what it was.
didn't know Larry well, but I'm lucky enough to have one of LPE's finest that Larry passed on to me. has 76k miles now and runs strong as ever.
and thankfully, this one didn't get the marbles!!