340 cam replacement

My buddy back in hi-school had one of Them 3/4 race cams in his 69-340 Swinger. It had a kick-azz idle thru his cheap-azz headers.He had all the good stuff.
But my stock 70Swinger 340 still whupped his azz.
Well I had 4.10s and custom slapper bars,lol.
And he wasn't actually a buddy..........Just another tic on the checklist.
At the track tho,he was both faster and quicker.................on his slicks.