Supercharged 6.4L in a 64 Valiant

Also ...

Started the engine for the first time. Started right up. Weird idle (rythmically up and down 200 RPMS), little to zero throttle response, ... . Drove it up and down the street, no shifting. 1st, R, P and N. Messed around the the Diablo Sport Tuner and realized real quick that without taking a crash course at the local JC, this was out of my league.

Took it to a recommended tuner, Tunes By Tad. He got it running great but couldn't figure out the trans issues. We both thought it might be the shifter so we installed a new one. Same issues, will not shift. Manually or automatically. He thought it might something mechanically with the trans so I towed it to a well respected trans guy. He's been in touch with Chris at Hotwire. Hopefully, they can come up with a solution.

Any ideas would be welcome.