Small block said you are the guru. Long background; 70 340, 10.5, seems to spec as a purple cam. Daily driver until 1980, never heard ping or det. sat until 2008. fired up, had intake problems, pulled heads, #g piston, small piece missing, heads, no sign, replaced piston, top rod bearing- no sign of detonation. (fluke)?
Borrowed and rebuilt unknown 780, ran, (this is still on jackstands), but seemed too much. Borrowed and rebuilt a 650 dp, much better, but still off a little (727 trans). Still on stands.
Any advice on carb? (power valves where 3,5; vacuum 7).