00728nam 2200157z- 450 9910712721803321(CKB)5470000002496958(EXLCZ)99547000000249695820230509c1976uuuu -u- -engExhaust emissions and fuel economy of a vehicle equipped with the Hausknecht valve train modificationAnn Arbor, MichTechnology Assessment and Evaluation Branch, Emission Control Technology Division, Office of Mobile Source Air Pollution Control, U.S. Environmental Protection AgencyBOOK9910712721803321Exhaust emissions and fuel economy of a vehicle equipped with the Hausknecht valve train modification3269584UNINA