I had a 3500 stall on my blown coupe daily driver. No complaints except for the Interstate driving. I would just set it at 3000 rpm and it did about 65 with everybody and his brother passing me. The rest of the driving was in town and it worked just fine. The car made between 420 and 450 rwhp depending on the tune and had a best of 11.0 at the track. Call some of the manufacturers and give them your car's specs and have them match the converter to your needs and your car.