1966 Dart D-Dart cam spec

I have a complete 4 speed setup to swap into my Dart now, along with a 3.91 rear gear set. It ought to be much quicker, I know this is off topic, but do you @toolmanmike know where I can find a 9.5 flywheel?
I don't think you will like that 3:91 gear with a low first gear 3:09 ( if that's the 4 speed trans you have going in ) I tried it >>>>> you'll get tired of shifting too early thru the gears and not going anywhere . freeway rpms will be too high for comfort . I had 27" tires on mine . did not like that 3:91.. so I put the 3:55 back in . but that is just my opinion .