Im running a 355sbc 435hp 4-10 gears 2800 stall th350 and want to install a 2004r trans. and not sure if I want to go lockup convertor or non lockup..What would rpm differences be at 65-70 MPH? And how much easier is it to go non lock up? Its a weekend car that I plan to drag a couple times a month..Also I love my Hurst quarter stick shifter what would be similar for the OD trans ?