Hey Thomas,
They are Old School, but were a heck o a lot of fun to run. Never quite sure whether you had it, or IT had you !!!
We used to run the Big Hoss hulls with OPS 60s running solid shafts in ball bearings with ether struts or webbed in shafts at about 7 degrees in the early 70s. Do yourself a favor and remove the turn fin that's on it - try one of Dick Tyndall's turn fins mounted to the rear sponson plate. Looks like the nose was stuck into the lake bank at least once based on pics. We ran Octura 1465 props, Missile Mist fuel, Kraft radios with servos that had little or no power by today's standards.
Your hull looks like it may be a splash of the Big Hoss, Deck appears to have more crown and the deck edges are much more rounded. Bottom appears Big Hoss. Here's a pic of a Big Hoss at full song - early 70s - I believe it had a Rossi in it.
Pic of bottom showing the strut we ran, stuffing tube through the hull was a couple thicknesses of brass tubing with about 4 ball bearings spaced with aluminum tubing within stuffing tube to keep them in position. Octura 6mm Universal and drive dog, H-24, 3/16" X 24" shafts came from Dumas - Drive shaft for Drag n Fly 60 - you can get a hardened 25" shaft from Gary Jensen Metal Concepts. Inc.
[email protected] (425) 821-9263. Gary also has struts, 9" stuffing boxes, needle bearings also. Seems to me the 7 degree Alum. struts and motor mounts we used then came from Marine Specialties back then - Gary's stuff is much better quality.
They ran high and dry, in a nice three point stance. Almost wish I still had mine, but I have a WOF Classic Thunderboat that fills that void. You'll have a ball with it. CHEERS !!! Bob