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You not only have dual Webers, but a fancy oil cooler! Wow!
I suppose you could gently blow back through the fuel pump, but I don't think it would be a good idea. If the fuel pump is clogged, it would push that mess back into the tank. And it might stress the pump diaphragm a bit.
That said, I might have done just that in the past- removed the hose from the carb and pushed a little air back through the pump into the tank and the world didn't come to an end.
I guess at the end of the day, if you have a clog it's most likely from junk in the tank and you have to drain it and decide how much cleaning is required anyway. So pushing a little more gunk back to it's maker won't be a big deal.
So I've come a bit full circle... Best way is to go from the pump inlet. But going from the carb is probably okay.
eric in vermont
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