For the 2019 season I ran the Comp 943-16 1.55 dia. springs with no issues on eddy rpm heads and Comp ultra pro magnum rockers. The cam is a 275 @ .050, .650ish lift solid roller. Comp specifies they are good up to 1.54 max dia.spring but so far so good. Removed and inspected them this winter and all seems good. Spring pressure is aprox. 240 lbs @ 1.95 and 600 over the nose. Very satisfied with these rockers. Around 100 passes so far and shafts, rockers, everything look like new. Also, this is with 10 degree tool steel retainers. Not the same as your setup but maybe could be of some help. See what spring is recommended for the cam you chose and like Andy said go from there.
Last edited by cb1289; 02/22/20 01:03 AM.