Build a 71-72 340 Duster or Demon. The bodys are reasonable the intake, exhaust manifolds and carburator will make plenty of power, over 400 inches is no problem. I believe a purpose built FAST Duster could weigh 3000 lbs without a driver. If I had a brain I would be working on one instead of a Max Wedge car. 400 flywheel hp should put you at around 118 mph. Et would depend on how well the chassis is set up and that seldom mentioned speed part, the driver. I personally believe this would be the best bang for the buck Mopar you could build.

Getting old just means you were smarter than some and luckier than others.