@novaskilling if you read this thread you will realise that blowby won't be able to answer your question for awhile.
I’m no Rocket Scientist but I’m quite certain that the 97 is too much for a 60, even a warmed over 60, on the street. Without question, I would install an 81 with stock jets and PV. Get it running right with the 81. Then, if you feel you need to tinker with a 97 then at least you will have a performance base line.
I think it’s the resistor plug wires. My sedan which also uses a Ford distributor had resistor wires for a year or so and I was getting some poor performance. Replaced them a couple weeks ago with solid core and made a drastic improvement.