Dartnut sorry for the confusion. I have no secrets here it's a Mcleod fully adjustable soft loc clutch and a Jerico 4spd. I ran a centerforce dual friction once tore the center out of the disc on launch, that clutch would shutter the car on every shift, hit way to hard. Best 60 ft. was in the 1.9 to 2.0. With the soft loc best 60 ft. is 1.49 and that's on a stock non tubed or springs moved 66 Dart with 9x26 slicks caltrac rear suspension and 5000 rpm launches. I had a 69 Bee back in the mid 70s loved that car, worst problem I had was shifting third gear with the factory console curly que shifter. Learned real quick to pom that T handle so I wouldn't slam my knuckles into the dash.