Or you 'rig' something up with various parts from other systems.. i did that in my 81 formula 23sc, had log style, and after i rebuilt the motor i installed center rise manifolds.. used some newer merc elbows, reversed, and 3.5"to 4" boots on the riser end (instead of going to the y pipe like they used to) and a LOT of cursing... so ya, it was a bit of a pain and in the end it worked, but in hindsight it would have been way easier to just stick the logs back in.
