You really need to degree the new cam in so you get all the help from it you can If you bought a new timing set with the three keyways on the crankshaft gear you need to look at it real close and read the instructions so you know what keyway to use to get the cam timed on the intake lobe centers where you want it There will be three different marks on the crank gear above the keyways and three more like the ones above the keyways, a triangle, a dot and and a rectangle out under the teeth on the gear. Those are the marks you need to use to time the cam Is the motor in the car? If so take your time to get it right. If it is on a engine satnd, which is much better for this job, then make sure and degree it
I've had cams be as much as 8 degrees retarded by using the stock marks No motor Mopar V8 will run worth a hoot with the cam retarded even two degrees
Good luck, let us know your results when your done