stock rails and lines will support 500hp boosted, been done for years in street strip cars that only see full throttle blast for a 1/4 or 1/8th mile, some would upgrade to sn95 rails, your stock stuffs just getting old and failing.
If you want to upgrade, any extruded AN style rails that fit and PTFE lines that suit your end goals, most of the fuel system stuff is ridiculously over priced when you break it down to stuff marketed to a single car model, most ppl I know just buy a cheapy evil energy PTFE kit, if its a Sbf, they end up using a high ram so rails are included. Then rig up double or tripple hell cat pumps for big hp boosted stuff so they can use E85, most run LS stuff now though since its cheap to just throw boost at junk engines.
Year one was blowing out the 03 cobra style, fox body tanks they had made, that let you use a late model fuel hat not too long ago, but looks like prices went back up, think on3 and few others still sell them in the $350 range if you want stock style tank.
