Jim,

I still have an unanswered question lingering: IF the anti-siphoning
valve is in question, would any gas be coming out at all from the fuel
tank? Or could the valve be a build up type thing where enough pressure
occurs and the valve kicks on(shuts the fuel supply off)?


Jim wrote:

I'm thinking about taking it to a different mechanic at this point..
although I might try to look at the anti-siphoning valve, and then also
unhook the fuel hose from the fuel tank and put it in like a 5 gallon
tank of gas and see if that works.. i think that would tell me a lot,
whether or not it is something BEFORE the fuel filter.. the mechanic
never really even did any testing on what came before the fuel filter..

I think you are on the right track now.
Jim