ISO th400 converter
You really need to pick a converter company and give them a call. I picked FTI since they built my trans. They asked me for every little detail about my car and exactly what I wanted out of it. I told them I wanted to be able to make a decent pass on motor and run well on the spray as well. They nailed it. 1.50 60ft on motor and 1.38 on the nitrous.

