1999 Chevrolet Blazer fuel system

Repaired fuel pump housing with jb weld cause I cant afford $300 complete unit. Didnt start so replaced the pump only;still no start except with starting fluid;does not stay running. How to check if its got correct pressure without gauge? Also where does the ground strap on the filler neck attach? And original person fixing it did not label fuel lines and where they go; could they be hooked up wrong? Truck was running just fine before the repair just needed to fix crack to stop leaking fuel so as to pass emmissions. What -other than not taking it to a arm and a leg mechanic-did I do rong putting back together. And where cani download a free service manual?