Small Block & Big Block Chevy Specific - Help me choose the right plug

Here's the setup:

67 Camaro
350 crate motor
Demon carb
Edelbrock power package (cam, heads, intake)

Trying to find the best plug to run with. Also trying to get the timing right with the digital setup as well.

Any suggestions?

Thanks

Rench

I've never had any problems just running the good ol' a/c delcos.

I replaced my Delco's with NGK UR4's......

Thanks guys,

I guess what I'm looking for is the best heat range and what gaps are people using. Any specific A/C delco you running soco?

I looked at the NGK's those might work too.