B&M Converter is bad

I use an ages old inductive timing light that doesn't have a dial back on it. Works on everything I've ever hooked it up to.

I agree, my Sun is close to 40yrs old.....just wish I had something to use it on...:D.

As far as the value on your dyno session, it looks like they were just trying to get you a hp/tq number and not really giving you a good tune, which in my opinion is all a good chassis session is good for.