IM surprised by Richard Holdeners 360 Magnum camshaft swap.......

YY1 said
...but again 245 NET HP through 3.92 gears moves a 4200 pound truck pretty well.

How about tractor/truck motor
400 net , with a 150 shot of gas, that you pull apart at 100,000 miles and it still has the factory hone marks,
In a 3300 lb A body with 3.91's. Lol