Ok my first walbro fuel pump was bought off ebay, genuine or not I dunno.. was installed by nizpro. Lasted a while, got fairly noisy, and was surging a lot more even with around half a tank full of fuel. After getting a few new parts and a dyno readout, it showed that the engine wasn't getting the amount of fuel asked by the tune.. Came to the conclusion 'faulty' pump.. This time round, do the right thing buy from a forum sponsor, get installed by a forum sponsor.. The pump worked well and the tune was running a bit rich this time after another dyne run... Could drive with under 1/4 tank and have no surging (not giving it a boot full obviously)... Now, its got all the symptoms the first pump had, accelerating with around 1/4 tank and it surges, I went to overtake on the freeway, not hard at all just to get around a car and it surged.. Haven't put it back on the dyno yet to see what is join on, but I have a good idea... Its really annoying, I know a surge tank is the best option, but I can't afford one atm, I'm almost tempted to put a factory pump back in, they didn't surge? Surely a ford pump can handle 250rwkw's, until I get a few other things sorted with the car and save up for a surge tank, I just don't want anything bad happening till then (BANG!!) What do you think I should do..