a few intake ?s

i want a performance intake system for my 1988 gmc s-15 jimmy with a 4.3L v6 engine but i cant seem to find one.i check everywhere and when it says gmc and blazer it says fits 8cyl.can anyone send me some direct links to a intake for my specific truck.

http://store.summitracing.com/egnsearch.asp?SearchType=Engine&N=700+4294908171+4294840129+4294819990+4294925239+ 4294907466+115+4294925005

on the summit racing website