The car has a 340/727 and 3.91 gears out back. The engine has a mild Comp 262 cam. Suspension was rebuilt using stock parts with a mix of poly and rubber bushings.
I guess I think it should ride/perform like an 80's Camaro or Mustang. It seems pretty far off from that and not in a good way.
Get rid of the poly bushings. I drove my friends 66 vette who put all poly bushings in it and it was terrible and couldn't wait to get out of it. I have a 65 vette with all rubber bushings and can drive it all day. I'm so glad I drove his before making the mistake of using poly on mine.