340 Engine Shake

I'm gonna need something with at least a 110 lsa. It has to be EFI friendly. I don't really want a rough idle. Might have to start calling around.
May be pretty tough to find a cam like that off the shelve.
The absolute worst thing you can do is over cam the engine, that will kill HP and make a ***** to drive. Your set up has a lot to offer if done correctly you should have a real road rocket.
Give Racer Brown a call they can help ya.
I would also try Crower