With a little bit of tinkering, you can install screw-in rocker arm studs and roller-tip 1.6:1 ratio small block V8 rocker arms on the 250 head. That will really wake up the engine.
Jerry
I'll check with the machinist about the screw-in studs and see if he thinks I need them. He is an old Super Stock racer (he actually still races-1968 AMC AMX called "The Wild Child"). He and his brother (they're twins) are pretty slick engine builders, and Harry (the one doing my 250) is known for his cylinder head work.
I did buy new stock rocker arms when I was buying parts, but the 250 rocker arm has a ratio of 1.75. I'm not sure if they interchange with the sbc or bbc.
