webers and fouling (not baseball )

thanks you all for helping me out with my webers fouling plugs prob. will scope out best place to tune webers. and since im here,

Q1.

once tuned, what then makes triples high maintenance? is it mainly just keeping em synced or are you always messing round with mixture screws.

q2. is there any one sparkplug that rules the roost? my own experience shows the ac/delco 4's resist fouling pretty well, and in my engine that says alot . price 3.99 apiece.

your thoughts most appreciated. thanks a bunch.