[andy669]

Most of the stuff I mess with wouldnt respond to another 30 thou of lift. Have you checked your actual lift with a blocked up lifter? There can be a substantial amount of power left in valvetrain geometry. Especially with stud mount rockers.

With everything else being equal, I'd be surprised if another .030 what worth 5 hp, in your situation. The first thing I would do is optimize the pushrod length and bump the spring pressure up.

Andy