Realistic estimate Please

OK I Was under there, and it is a normal type u joint. Are all 904's the same length?

I was considering using the Slant converter if I go with the 904, as it is new, I only have had that tranny for about 1 year, I had a new one installed with the new tranny.

The slant converter will be ok for the 360 right?

At some point I would like to get a higher stall one, but it is not in the cards right now. a bigger rad and new exhaust are first in line!