67 Dart 270...Project Old School
This sounds like a great time to swap cams in the Magnum, but it doesn't sound like it's in your plan (?).
I really hope you reach your track goal--you certainly deserve it after all that work with the trans swap! And I'm watching to see what it takes to get past the horsepower sponge that the RH transmissions are known for. I've read about figures of "up to 1 sec in the 1/4" on Dakota forums (a5eighteen), but your accounts of this seem more realistic--but still made me pause!
If something's costing horsepower, build more motor! That's cool with me!