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What BHP would the standard fuel pump be good for? im thinking of got ko4 and im looking for 280bhp, i know the pump is good for that but would it be near to the top limit? how good is the standard pump? and is it pos/worth putting an other one in the line incase one fails? What dose a...

Every now and again when I start the Biza up it makes a noise like a vacuum, if i turn the engine off again it whirrs slower and then I start again and it starts again! Only lasts about 30 secs then its gone? Any ideas? Cheers