Yes to Rislone.
But, keep in mind too that given the pipes and especially the mufflers have be liberally oiled, it will take some time and miles, given the rings do get seated, for the oil coating to burn off and stop making smoke. Had the same some years ago (valve guide wear) and was surprised how long it took for the oil to burn off completely and all smoking to go away.
On edit: as Brent just said, you must also look into the intake gaskets, seals, guides and evne the PCV valve, if used. FE's are prone to intake gasket leaks for a host of reasons.