450s plug reading lean ??

I installed a snorkel that I made using 2" (outside diameter 1.5" inside diameter ) ran it on outside of front left fender. I installed a hmf pen land utility series exhaust that I believe is for a Rincon I had it welded on. And I added a uni air filter. Needless to say it would barely run after all of that.

It would spit and sputter and was unridable. I could cover half the opening of snorkel and it would run good. So after reading a little bit I ordered a few main jets a few sizes bigger from jetsrus. It had a 130 in it. Iv worked my way up to a 150 and the needle clip on top notch. It runs pretty good has a little choke every 10 secs or so at steady throttle when its warmed up. My muffler is getting real hot. I haven’t noticed the header from motor glow red but the inside of muffler has got red.

I bought 2 new plugs today and did a plug check a few min ago. ( last 4 or 5 tanks of gas have been non ethanol gas). I’d hit 5th gear wide open for 10 secs then push gear shifter down as far as it would go , once ( neutral, but actually 4th gear if I would have let up) And hit kill switch. Pulled plug and it’s almost white as new.

How many more jet sizes up do Yal think I should go? Think Iv already went through around 8 jets.

This pic is new plug.

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