main reason im asking is because my truck dies out at 42-4300 rpms. the cat may be clogged so thats my reason for the exhaust(the whole thing is shot basically). but after reading these responses, i might just finish the exhaust and see how it decides to run then take my carb options from there.

87 4runner 33" bfg mt's no lift. dubbed the marine by my frinds. dead as of august 14 2005. 84 ex cab p/u 33"a/t, 3" suspension+3"bodylift, thorley header and 2.25xhaust, downey midrange cam+rocker set, very milled head! NO RUST!