[submariner409]

Gunk Foaming Engine Cleaner is essentially a soluble oil used for external degreasing. Spray it on, hose it off.

Not sure about the float heights and vacuum breaks for your QJ - they're all different, and probably nowhere near those same settings on one of my Olds 455 4MC setups.

I can say that, unless you're really familiar with secondary metering rods (there's a million of them, all different tapers), hanger height control, and air valve opening adjustment, stick with the factory specs. No, you won't get any more power by lifting a rod set early - just a richer secondary mixture.

Find that Doug Roe HP book on Rochester carbs - it's worth its weight in gold.