1985 Chevy S-10 355 Cam?

[93Chevy4x4]

I have a 1985 chevy S-10 with a bored .30 over 350 vortec heads and a cam, with a 700 r4 behind it, with the original S-10 rearend. I didn't build the motor i had someone do it for me. I told him the motor was going into a truck so I think the cam he put in it is for pulling. It is really numb on low end it doesnt have the power it should have. When i hit the gas it will burn the tires for prolly 25-50 ft with no brake but its not what it should be. But when I hit the throttle at 50-60 hold on this thing will throw you right back in your seat and then some and still want to go sideways. What would be a good cam for more low end power?