Fixing to order a 228R TSP cam .588 is max lift. Pac 1218's are rated to .600 lift is that enough margin for safety and reliability or should I go with pac 1518's rated to .650 to definitely have enough safety margin. Sorry for all the questions but want to do this once and have it stone reliable. It's in a sonoma so anything is a major FPITA to work on and don't wanna have to go back and replace broke springs in the future.

 

1218s will work. They're actually good to .610" from what I was told.

Also, I've been running mine for over 2 years in my DD with no problems. .602" lift cam.

I'd go with the 1518s just for the extra piece of mind though.

 

x2 on the 1518s.