on my saff i had problems getting the right plastic fuel pipe luckally im not a purest and not concerned about origanality so i replaced all fuel pipes with copper type bundy pipe its a nice tight fit inside rubber fuel hose that made for petrol the bundy pipe for anyone thats not fimiliar is like a big over sized brake pipe used on hgv trucks its very malubul i kept the ends of the likes of the fuel filter fittings i cleaned the plastic of with a stanley knife there a perfect fit for the rubber fuel hose on to the bango and good old fashioned stainless steel jubilee clips i do these up with a quarter inch drive socket its tryed and tested for many a year gone by