You can get the kits with a cheap external fuel pump that will include the filters and fuel lines. My 69 has a factory return I used. The size of the standard line they send you should be fine, or use 3/8 for higher HP applications.
http://www.TheFOAT.com/92GTA 1969 Pontiac Firebird w/BP 461ci stroker kit, 670 heads & XE274H cam. Primer black with black interior. 1992 Pontiac Trans Am GTA w/SLP Performance Package. Dark Jade Grey Metallic, grey leather, T-Tops.
