i got your messageabout my turbo setup. i ended making my own headers but if you can use your manifolds go for it!! save alot of time and money. if you run twins a t60 is fine if you run a single a t67-t76 is plenty also. i ended up hurting the lower eend of the motor and mine is all apart again. nothing to due with the turbo setup but a bad oil pickup cause bearing failure. i ended up ordering a set of ross pistons and i am file fitting the rings and going deeper into the engine build so it will be able to handle the power. I split my th400 case with my setup and had to reinforce it so i would say get rid of the dynoflow. i looked at adaptors and wouldent mind a 4le80 with overdrive one day but we will see.