I have the caltracs with new hd springs and will go a 1.60 60ft time.I have tried the mickey drag radials not with great results. Switched to the et streets and much better 27 10.50s.The caltracs really help with axle wrap.If i was to do it over i would.
Move the springs in 3/4 which i already did
make the rear shocks straight up in down which help control the rear of the car better.
Went to the big radial race in georgia and saw a neat setup for leaf springs. It used a front segment with the caltrac bar and a coilover setup to hold the rear of the car up, Seemed like that was the hot ticket.