Hey, sorry if this is a repeat post. I have a set of TA aluminum heads and the only options for plugs according to TA’s website are the NGK BP#ES which I can only get a 0.028 - 0.035 inch gap. I’m running HEI and looking to get at least a .045” gap. What if any are the other options to get a larger gapped plug with these heads?
I’m running the Stage 1 TA heads, MSD HEI around 10.5:1 compression. I’m seeing FR5’s or NGK 7373’s as the go to. I was running BP7ES and needing to go with a hotter and larger gap NGK. Thanks!