I own a 1978 Fiberform Baja 2650, apparently it is the "Chinook" model. The boat is 28' LOA, has a flybridge, and a single Volvo 255hp with the AQ280 S/P. According to the USCG plate it will hold 18 passengers. Has a 75 gallon plastic tank, and upper and lower helms. Also, it has a shower/head in the salon.
It is not chopper gun construction, other than some of the interior glass. I have patched a faired out a few unnecessary thru-hulls, seeing the crossection of the hull, and the pattern in the bilge, it is sandwiched woven roving, the smaller, or older models may have been chopper gun.
I gutted the interior, which was in nice shape for the age, too much heavy plywood used though. I removed about 500 lbs worth of 3/4" plywood! Once gutted, I was able to inspect the subfloor, 3/4" plywood laminated with about 3/16" of glass. I took small core samples of the inner/outer stringers, the boat is extremely solid, and I thought my old 1982 Sea Ray SRV220 was solid. The only delamination I found was on the cockpit deck.
As far as I can tell, the name had vanished by 1980 (that is the most recent model I've seen labeled as such)
My cursory research shows that they built flybridge models from 22'-32' in all styles, sportfish, sedan, one common trait is the dual helm, possibly due to the fact that they were designed in the PNW, read wet/cold. I have more pictures of my specimen, if any fellow FF owners need some continuity.