340 camshaft

Jason Holt said
I was looking at the comp cams xe284h camshaft.

Mattax said
Running a few simulations of the the 220/226 Voodoo it produced more street torque than 3 CC cams with avg similar lift.
Comp cams classic 280480/480
Comp's 'replacement' 268/276; 264/264 (20-309-4, was called Magnum Muscle)
Comp's XE268. 477/480 This was the closest, making more power than the Voodoo starting around 3000 rpm, give or take some.

In terms of top end horsepower, all three above are in the same ballpark, and...

I ran the CC 280 'High Energy' for around 80,000 miles on a 340, 727 with 3.23:1 rear and typical street tires (215/70-14 etc.) in my 67 notchb.
On top was a Street Dominator with 3310-3. Usually 340 exhaust manifolds exited the gasses, but For a few years it had headers.
The Turbo Action convertor (3000 rpm brake stall) was essential to making this streetable.
Pretty early on I installed Rhoads lifters. That helped a bit more with street driving. Still never fun when stuck idling in traffic .

This experience (and some others) is why I liked the Voodoo for what you first said you wanted. It will still spin into the high rpms but will be more streetable than the others discussed (possible exception being the cam Johnny Dart suggested).
If you want higher mph in the 1/4 mile, then the XE268 or 'magnum muscle' are the next best within the Comp Cams line, at least on paper/sim.

The suggestion to narrow the drivetrain desires is probably the next step. If streetable means driving 1000 miles on interstates, then gearing/tire combos that put the engine above 3000 rpm for hours at a time drive some people crazy. If it means driving in parades/car shows, then a high geared combo doesn't usually bother anyone. etc etc. Only you know what you may enjoy or consider acceptable.