I think I need more cam

That cam is the equivilent of an RV cam for a 4" small block. Much more info is needed tho. Wha tdo you have for heads? Any work done to them? What rockers? What springs? Header size? Power brakes? Intake design? Carb size? gearing? trans type/stall speed? Last and most important...What do you do with the car 80% of the time? And what gets done that last 20%?