I would agree. The cam is not big enough. Also, what fuel pump and system details do you have goin on? That was never metioned. The hurricane will make more power than the Victor Jr. The cam Poyboy recomends, is perfect. That cam would work very well. To mention it again, check piston to valve, installed height, and spring pressures, and coil bind for the springs. That could be part of the issue also, not enough valve spring.
Frank