spark plug heat range

All post above are about correct n10s are OK in the 10-11 to one area, but cam alltitude fuel mix how you drive are all factor gears etc. Start out in around the N10 range and go colder it the plugs look like they are melting? it is going to take some driving etc to get it just right with your combo..

Spark advance and total make a HUGE diff too.

What are you running for base timing and total advance and when is all in?

Maybe a set for the track and a set for the street is what ihave done.. Most times colder for the track buddy..:)