Some 5.9 roller cam help from y'all please

Trail, you can just order the heads with upgraded springs if you get them from us, ootb with 120#@1.66 300# at 1.16 which will work for up to .550+ lift.

In your case, without getting a bunch of expensive parts like stall converter and gears, stick with my recommendation of the 212 520 with a max of 215 .533