Where to go next? Low 11's high 10's??
Bigger cam, smaller/looser 8 inch converter.. I go 10.70s with an 8 inch converter with 4.30s but its a 408, 11.30s with an old 340 9 1/2 to 1 comp, 557 lift cam , ported J heads ,same converter but 4.56s. Lenny at Ultimate Converter Concepts has done two of my 904 8 inch converters, one in the car, my spare, and the lockup one for the 518 in my D150. Years ago I had a pretty mild 318 in my Dart ( while my broken 340 was being fixed ) it ran 13.20s with a 10 converter and 3.91 gears i put in an 8 inch and was going 12.70s. My last motor, a 363 ( Magnum 5.9 block, 30 0ver, W2 heads, 590 lift cam 11.5 to 1 comp ) ran a best of 10.40 at 125, 1.40 60ft with same converter and 4.56 gears.
