just a wee problem i have and cant seem to find what it is, and i was owndering if anyone knew what it could be?

the car runs perfect but when i sit at a steady speed it seems to hold back and seems like it splutters through the filter, has anyone had this problem before,

 

I'd start by changing the fuel filter unless recently done, then check co when warm.
tabetha

 

i have chnged the fuel filter mate do you think it could be the fuel pump?