With the 105mph you're leaving a lot on the table that's for sure. It would be cool to run high 12s/low 13s with a 7" tire and rally's. Your approching sleeper territory....lol. I personally would try them, i just don't feel comfortable spending other people's money. I'll look around also and see what kind of shifters are available and post if i find anything that looks promising. Wish i was closer, i'd like to see you make some passes.