For a stock converter, 3.23 gears, 225 tire and 3400 pounds that's very good. For comparison my Dart was 3240 with an aluminum headed 340, 11.4-1 compression, 230/236° @ .050", .580"ish lift hydraulic cam, 4.30 gears, 9.5" converter that flashed 5400 on a 275 dr. It ran mid 1.50 60', 11.60 @ 116 in the 1/4, 7.24 @ 94 in the 1/8.