Just abit of an update thought i would let you guys know i went to the mechanic that i take my ute to told him what was happening and showed him the gasket he reckons that its either a bad batch of fuel or because its premium fuel that therefore it its pretty much cleaning out all the gunk sitting in my tank and maybe blocked one of the jets of something as for the gasket he said its rare to suck in a gasket but reckons it did it because of the extreme backfiring its been doing which sucked it in. its booked in next Tuesday so he can have a better look.

Thanks