RustyRatRod's Guide To Hot Rod Bliss

So, absolutely great stuff, not quite finished with all 1400 pages..lol...but I have a question ❓
Does the motor built for RV applications have a different cam to produce more torque?
And....how well will it perform straight across into my '74 Scamp?? (I know it won't just fall off in there and that there's a lot to do to make it happen), but generally speaking wouldn't it pull the tires off of it just the way it is?
And, I'm doing the same thing in my B body '73 Charger SE... should I go through them and change anything?