recieved my comp c-4, now i had problem with getting the right bellhousing for it, this trans is going in my 69mach1 408w. fmx to c-4. the trans has dip stick tube in case , so i quess its cased filled or is it pan filled, getting confused on these c-4's all new to me. has a pan on it whats the differance between the two?. also will that SPI bell work with this set up, they say it will work on small bell and large bell. costs more. i have the 164 SPI flywheel now also 11 7\16 converter coming so now i need the right bell anybody give an idea what to get, because this is getting real confusing. thanks .