Morrisville;Pa.- Two men were killed and five persons injured in a flaming two-car collision on old Route 13 in Falls Township near this Bucks County community Saturday night. Dead were Ivan Horner;48;of Trenton;N.J. and formerly of Levittown;Pa.;driver of one car;and his passenger;Bernard L.Rusnak;30;of Morrisville. Officers said the Horner auto had burst into flames;badly burning the victims. Mr.Rusnak was a crane operator at the Fairless Works of the U.S.Steel Corp. He is survived by his widow;Doris Grant Rusnak;a daughter;Mary Frances;5;his mother;Mrs.Pauline Rusnak of Belle Vernon R.D.3.;a sister;Mrs.Elender (Pauline) Marks of the state of California;two brothers;Joseph and John of Belle Vernon. His father was the late Michael Rusnak.Friends will be received at the Harold R.Toner Funeral Home;Broad Ave.;Belle Vernon;beginning March 6;at 7 p.m. Funeral home visiting hours are from 2 to 5 and 7 to 10 p.m. Services of Requiem High Mass will be held from St.Sebastian R.C.Church;Belle Vernon;on Friday;March 8;at 10 a.m. Rev.Andrew King will officiate. Interment will be in Belle Vernon Cemetery. Harold R.Toner;funeral director.