Canuck, that's sounds like a good deal on the tri power. I'm not good enough to ID based on numbers but essentially there were four permutations, high rise/low rise and square port/rect port. It is my understanding that the high rise oval port is the rarest. In my search for a tri power I found many that were welded up here and there. I finally found an intake that was clean except for an water neck bolt hole which a quick heli-coil took care of. The price was $400USD , no carbs. That's about fair maket value. With carbs, I suppose $600USD is about right. ( I didn't care for the original carbs anyway, but a Vette guy might.)