cam duration question for 416.

412 stroker.. that thumpr cam was my other thought "cl20-601-4 with 287/304 duration" thats the middle selection. is that the one you have? the only thing i was concerned about with that cam is to much annoying shake at idle. i was looking at the eddy because it would compliment the rest of my package (rpm intake & rpm head later on). i figure the engineers must know what there doing making these work together? in any case whats your experience with that thumpr cam (shake, lope, performance, etc) ??