I must say you are much happier than us here in Brazil, where the percentage of the corrosive-water absorber-gum producer is 25 (yes, twenty-five) per cent of ANY gasoline one can buy.
My old (but very good) Chev. 261 engine suffers like a condemned to drink such a crap. I have recently replaced the carb (Weber) because of corrosion in the bowl (and everywhere inside, I guess, and the "new" (reman) one is already showing signs of disgusting internal illness. New parts are unavailable here, so I keep cleaning the metal powder and gum and replacing rubber parts as and while I can manage. The jets must be way bigger than standard, or the engine won't be feed properly. Pumps suffer, also.
Fabio.
