I've seen this one several times at various tracks in the east. First time I saw it in person was at Lime Rock. It's the one that I mentioned was a "GT40" in earshot of "the Englishman", and he came running over and threatened me with a lawsuit for calling it such since it was clearly a "Gulf".
It is a little confusing in person since it does have the flared rear "Gulf" decklid and wheels on it. It was also partially in Gulf colors with the orange Gulf wheels on it at the time.
As I recall it had a single 4v Boss 302 "appearing" engine in it with a "little bit different" headers then expected when I saw it around '92?
I suppose that having those changes to it is what makes it a "Gulf"?
As virtually all '40's are, it's rather unique and "very cool" and great to hear it run on the track under any configuration and conditions at all.
The Chevy guys have nothing to compare to it and the comparable Porsche would be probably a whale tail 917 flame thrower.
When Diamond had my aluminum BB heads, welding up the cracks, he made a comment about "aluminum being 23 cents a pound in scrap". I said "they only go on a '40 and that's a 10 million dollar car. How much are heads for a 10 million dollar car worth?"
They were building Pro Stock Camaro chassis' at the time at 35 thousand a pop and as predicted anyone had an issue dealing with their "kiss my ass" attitude in person at the time. I didn't but they had my heads and I had to be quite. They were using Chevy Pro Stock heads as door stops in the shop.
I will give this to them, they were absolute artists at welding aluminum, even stoned out of their heads with coke. That was a little nerve racking though.