Buy brian tooley 7.400 pushrods, ls6 springs (good up to .580 lift) and ull be set. No need for trunion upgrade unless u have a very aggressive cam or are pushing 600+hp. I've seen stock rockers go 800 hp with no problems
it's a great off idle cam, with no bottom end loss. The blue and yellow LS6 springs are good for .570 lift. That cam is refereed to as the 212/218 high lift.
It's a great beginner cam, no stall is needed, no rocker upgrades . . . reuse all of your stock parts
PAC 1218 .600 lift springs
any 7.4 hardened pushrods
and the cam
Run ls6 springs. I've seen and used them on 580 lift cams revving to 6800 rpms with no valve float or coil bind. Best bang for the buck. Pac 1218 are damn good too but for the price u might as well but BTR 660 lift spring kit for 220. LS6 springs are cheap u can get them new for 60-80 bucks. Reason people say they're good for 570 lift is cause they play it safe. I've ran those springs on plenty of builds with proven results and no broken springs after 100k miles