Carter fuel pump for small block

I'm thinking I need a new fuel pump for my motor it is a 360 J heads stock compression and a holley 600 sometimes flutters and has no pressure(dies) let it sit for a while and it will work again. What do you guys think of this pump? Changed filters and lines and yes has gas


http://www.summitracing.com/parts/CRT-M6270/?rtype=10

Is this the rebuildable one and do I need a regulator?