273 Rockers with roller cam

if, and that's BIG if i was gonna do it, there's no way on god's green earth that i'd not have those bushed. i've seen stockers with stock spring pressure absolutely gall and destroy shafts under normal lift circumstances.

at that level of lift, i'd be concerned with geometry tbh...
Thanks. I have run a .558 SFT without issue, but the spring rate is 315 open.