got a d15b7 block with z6 head oem gaskets vitaras block guard shotpeened rods with arp bolts and acl rod bearings and oem mains. what should i get to sucessfullly run 8-12lbs of boost on a ebay kit as far as fuel and vaccume goes i heard about walbro but i dunno what size to get and i dunno what size injectors to get.. and will the fuel filter make n e diffence should i get oem or aftermarket?

 

8-12 psi doesn't mean a whole bunch unless you take into account the size of the turbo. Because you say it's an eBay kit i'm going to assume it's probably a 57 trim t3/t4. d-series rods are pretty weak but shot peening will help a little bit. That being said, you should be fine with that much boost. Not sure what you mean by what you'd need for vacuum.. As far as fuel goes just get a wb 255 lph unit and use the stock filter screen. For injectors, 440cc units should be fine.