Soon I'm going to be replacing my outboard with a big V8 inboard. I'm pretty sure every boat that has a big V8 also has a built in gas tank. (at least from the factory anyway) I just spent $60 on a 12 gallon portable tank for my outboard...would it be possible to hook that up to an inboard? Maybe just put a "T" in the fuel line with a valve to choose the built in or portable tanks?