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chuck nuytten carbs says regulators should not be hard mounted,of course he was telling me thats why the complete fuel system and carb that i got from him speced to my engine wouldn't work right.said vibration from being mounted won't let regulator work right.it didn't cure the problem i was having,ended up selling that carb and put mine back on.



What? Never heard of such a thing. I've never seen on "floating" w/o a mount...except for the OP's.



Then you never had a car with enough power to shake the tires.

Yes that's correct, never solid mount a regulator or any spring loaded bypasses valves. Vibration will cause them problems. Same with psi gauges. Plus like what side, thin wall aluminum fittings will crack from vibration with something hanging off of there like that.
Too bad we can't see how these cars are plumbed that catch on fire because I bet the owners learned a expensive lesson.