Which Trick Flow Heads with 318 (future 408)(part 1 of my plan)

Yea it does and that’s why I wrote what I wrote.
IF he has a hot roller cam 318 now, I would compare spring rates/stats of what I have now (or will need) between the TF head and what I have now.
The TF heads use PAC springs.
To be honest, I hadn't read the differences on the springs - only noted the TI retainers.
240/600 on the top-end heads, WOW!
The TFS-6141T783-C00 lists 138/430 which seems reasonable for a FT cam, no?