What springs come on eddy performer RPM heads

Rusty calls that same cam "The Magic Grind" that sounds and looks a lot bigger than it is. The only Cranes I've had experience were the Fireball .450/296A in a high compression chevy small block (happy combination), and a Crane 284/290 Energizer that came as purchased in a truck with a low compression 318 (It was everything AJ and wyrmrider say not to do, with the Weiand Xcellerator on it and 3.21 gears, there wasn't anywhere in the powerband a well tuned slant six in place of it wouldn't have run away from it.). But, based on the parameters given I would still go with high lift short duration if your not going to running it past 5000 rpm. Actually, based on parameters, I would be wanting to try a hydraulic roller retrofit with a Lunati high efficiency .485 lift 258/264 with 207/213 @ 050. 1000-4800RPM 112 LSA cam.