Camshaft selection

[Fast355]

Thanks for the input everyone.

Im running 3.73 gears with 285/70/17 tires. I'm running the 350
throttle body with 454 injectors in it, so fueling isn't a problem.

What at is the story with all these 700r4s advertised to handle 400+hp? Still not stout enough for a 6500lb truck? I would go 4l80e but I like the idea of the lower 1st gear and higher overdrive in the 700r4...

all I'm looking for is some more low end torque and the best economy I can get. Which I know may not be much. I had a '74 F250 with a 390... Had a rv cam in it and I was happy with it... Good torque, good economy. Not the fastest, kinda died out by 4000rpm, but that doesn't bother me.

Thats why I was thinking maybe an "rv cam" for this truck. What do the specs look like for a cam like that? I don't even know.

is the edelbrock manifold for tbi heads or the old style heads?

700r4 and 4L60E are both too weak for a 5,500 lbs vehicle, much less one weighing in at 6,500. Just asking and begging for problems. 80E is a much stronger transmission even stock than the best 700r4 or 4L60E.