RE: tunnel runners
Yup, just a Glow-Bee decal on it. My best guess is that it's a Dumas Hot Shot hull from the late `70's-early `80's. It's hard to be really sure as the black paint doesn't help much. It's probably 24" long, I had one like that way back in `79. It's going to need a tuned pipe on it for sure or get it swapped back to a stock lower unit. Tuned pipe, you're looking at $70.00 on up for a new one, new lower unit halves for about half that price. Get an Irwin tuned pipe, he just so happens to live right near you!
(update) I looked at the shots again, it may be the 7.5 version with an ancient lower unit on it, you can tell by the short skeg. Hard to find parts for that one but I happen to know where a new lower unit, case halves only is sitting at, somewhere in my basement! Some boaters put the 3.5 on 7.5 hulls because of its stability on rougher water.