sorry,, i should have said also with higher compression you run a tighter gap

why do i do it? cause it makes more power with a tighter gap for me,, with higher comp,, like 14/1

i dont run alcohol,, so i dont know what works with it

its crazy to imagine that on a motor that has 8 cylinders, each making 105-120 hp/cylinder that you could change the plug and influence the combustion process and gain 1-1.25hp,, thats like.... a lil less than 1%,, wow thats alot... added up through the 8 cylinders it could be 5-10hp..... its crazy to think the combustion process actually matters in the motor,, wait... it does