Toluene Dart - '73 swinger

Roger that. I ran with the manufacturers recommendation. (Lunati roller cam and spring, 73117 dual spring) 1.800 @ 200lbs., 1.100 @ 596lbs, 1.050 coil bind. 249/255 - .608/.624/. lift after lash w/1.6 rockers.
howards didn't give a recommended spring. But Being as I'm gonna go with trickflow heads I'll have the room to fit a larger spring. Hopefully a larger selection.