My 86 2.5 has a bad intermitent miss low to mid range while under load. I have new plugs, wires, cap, rotor, Ing module, 6al, adj timming control, msd coil. What gives? This is very annoying. I have a sbc laying a around i'm going to slap some heads on it and put the t56 i got behind it and lay the poor 2.5 to rest after 170,00 gruling miles.