That's a very big change in cam. The solid roller is near race spec, the hydraulic roller I would consider to be fairly mild on a 400.
With 114 LSA, you've got 3 degrees overlap at .050 lift, which should give a mild lope at idle with about 15-18 inches vacuum, depending on idle speed. The motor will have strong low and midrange torque, with decent upper RPM power. Depending on intake and carb, horsepower would likely fall in the 450 - 475 range around 5600 - 5800 RPM peak, with about 500 ft-lb around 4000.
I would consider this cam to be biased for frequent street driving with occasional "for fun" track use. It certainly does not take advantage of the aggressive nature of the rest of the motor (large port heads, shaft rockers, etc), but that may not be what you want.
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