new to this /6 thing, what's a drool tube head? Kid has a 74 swinger /225. And slant6dan we just got the car and put in new plugs they gave us ngk bpr5es-11 stock #7634, are these good
They're good quality plugs, but they're not the correct ones, they're a wide-gap variant. You could close their gap down from the 0.044" they come at to the 0.035" your stock electronic ignition wants, but that's not as good as getting plugs designed for the correct gap, because if you close down the wide-gap plugs the electrodes won't be parallel, which they should be. The #3459 (ZFR5N) is better. And yes whichever plug you install, you need to remove, omit, leave out, not use the metal ring washers. The ring washers are not to be used on '63-'74 slant-6 heads.