John's right or consider the little-bitty -097 Duntov cam here.
I DD it in my old junk301 for quite a while back then and it was a real hoot in the little engine.
Nowadays, I'd probably opt for an Isky Z-20 or the little Crower.
Or this one that's in my bedroom closet now.
A PAW PN 10341 ACTUALLY per the timing card spec'd at 280/246, 108/108, .498" gross lift and need's .030" hot lash on both sides. I'm going to install 1.6 ratio rockers so it will be right at .500" net lift.
I'm going to shift the little short-stroke jewel at 8,000 just for the fun of it!