it's a cheap vaccum gauge that was laying on my shelf for years, take those numbers with a grain of salt!

Not that much carburetor work here... but I was surprised that my power piston wasn't stuck when I first opened the rochester. Also I've used the same can of gas to mow my lawn ~2x a year for the last 3 years! And, my infrequently used chainsaw finally got through one gallon jug of saw gas after 4 years with no problems.
Now I've jinxed myself!


'59 Chevy Suburban, NAPCO