Has anyone used any of the off brand electric fuel pumps you see advertised on ebay for next to nothing,specifically the PRO COMP brand.I see a 140GPH similar to holley black and multi fuel compatible for $54.Anyone taken a chance and used on of these with success?

i wouldnt take any chances.
buy good quality parts while they are still available or the good parts will end up being even more expensive or dissaper all toghteter,its alos more expensive to buy some cheap stuff first only to buy the good parts later.

i payed some pretty good money for a Fuellab pump but i figure that i wont need to buy another pump for a long time.

I have been running my pro comp 140 gph pump for at least three years and it seems to work good. I had to put a new gasket on the cover plate as it was starting to drip, I put a holley gasket in it as they had it in stock at my local parts store. I have never flow tested it but it seems to run my 499 12.5-1 with a 1050 dominator and never goes below 6 p.s.i. and I have it set at 6 1/2-7 p.s.i.. I would say at this point I am not disapointed at all. I also run the pro comp dizzy.