230 @ .050, 110 CL, .480 lift (.320 lobe). With 1.6 ratio, .512 lift.
255/70-15 is about 30" tall, isn't it?
Sounds like it's gonna need some gear; Comp site says 3.55-3.91 & 2500 stall for 340-360...
I agree with Mattax on Mopar-specific cams. but it's not my money...
FWIW, I tend to run more exhaust bias on anything that'll have an exhaust system.