Poor acceleration

[Hefferman]

I have recently bought a s3 c with misfire I have cured this by replacing the distributor which had a damaged pulse wheel, however on road test found to have poor acceleration, on return to workshop wouldn't start as fuel pump not running got underneath tapped pump then started.This weekend I shall change pump ,filter and fuel pope as suspect fuel starvation am I in the right area of thinking or am I missing something else.
Any thoughts appreciated.