cam timing and spark plugs ?

[shbop]

What's the consensus on cam timing for a 3.3 running an sc grind, and what type of spark plugs? The cost difference is pretty extreme, but I don't mind spending if it's worthwhile. Bosch - NGK Iridium, regular, racing, ?.... heck, the list seems endless. given the same heat range. This is an 83' euro motor in stock configuration.
Thank you in advance!

[RarlyL8]

You're gonna love that combo!
I set them at 1.70 for max torque.
Spark plugs are personal preference. I go one step hotter NGK. No issues.

[Tippy]

NGK 'cause they are dirt cheap and work fine. Running 1.4-bar now without issue.

[shbop]

Thanks guys!