camshaft for mild 340

rumb
I never said assume low compression
I said if he did have a later 340 then you go one way
with his build he has a lot more choices
The 268 comp is short for the amount of lift- go voodoo instad, or howard, or Bullet, or custom Engle, Crower etc
the summit can be had cheaper as an Elgin yet another chevy regrind
the DC cam is fine but obsolete and pricey