Not apples to apples in a power adder situation and I've been using projected tips forever w/zreo issues as long as the carb/timing are where they need to be.............
True. Can't remember for sure, but with the boost I was running the static CR figured out to be around 17 -18:1. Projected tip plugs don't live there.
Yep, I did a pair of carbs for a blown 588 BB Chevy in a 25" Eliminator boat and they need the non projected plugs and a bit colder accordingly...........fires right up w/the bump of the key and he lifted at 115 mph at only 5200 rpm stating "It's too fing fast" but would fall on it's face prior...........Power adder stuff is in it's own tuning world imo............
