Did you not know that some, not many, but some Elco 90 ft class PT boats had the Allison's removed and three General Electric J-124-A-15 gas turbines installed. You have to look very closely to see the diffrence.
They also had the midline 30 MM Bofor multipac, belt fed, beer shooters....with hyper-freem drive.
You can tell the diffrence by looking at the Jensen Dynamoniter, its blue instead of the usual orange. Also the pin-stripeing is wider.