[UCTURBO]

Ive recently stepped up the water/meth mixed at 50/50 by mass to around 25% to fuel flow on my RB30 SOHC. Im spraying 1200cc/min and my 875cc injectors are at 91% which I think is about 4750cc of fuel. Since Ive upped the water/meth I've been able to give it a few more degrees ( from 10 at max rpm/boost to 15 ) without knock.

Since I have been spraying more water/methanol Ive noticed that the plugs look leaner, ( white-ish base ring ). Especially no6 which is renound for getting more air which in my thinking its getting more water/meth than the rest. Is this normal or do I just need more main fuel? Cheers