Help finding replacement timing chain.

Does everyone think by upgrading to a newer profile cam I’ll gain that much over my mopar performance cam with .484 lift 284 duration? My rockers are 1.6 ratio rockers.

Not IMO, no. Those old outdated MP cams work better than most people think. I don't think it would be worth all the extra money to change it. If you were points racing and lookin for every tenth of a horse power, maybe. Damned if I would change it.