560 RWHP in a 3450 lb Duster wth driver through the full 3.0 exhaust system ran mid tens at 180 ft above sea level in decent summer weather at Woodburn, OR. Density altitude varied between 750 to 1500 Ft. morning to afternoon. That motor made over 700 HP on a engine dyno at 2500 ft altitude, lots of ways to slow street and strip cars down work shruggy

Last edited by Cab_Burge; 02/04/16 05:50 AM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)