2.3 quad 4 beretta engine

i have a 90 beretta it lacks power changed spark plugs boots coil packs coil housing fuel filter fuel pump and still lacks power doesnt seem to be firing the middle 2 plugs can any one give me a suggestion on where to look next

Well the quad's are bad about blowing head gaskets. We have a 90 beretta with the 2.3 quad (H.O).. it Blew a head gasket and it run like crap. But know it runs dang good after a complete overhaul and a few mods.... ha ha Are you getting any fire on the middle 2 plugs like any kind of spark. If you are then it is proably going to the the head gasket. Run a compression check to make sure..

Well the quad's are bad about blowing head gaskets. We have a 90 beretta with the 2.3 quad (H.O).. it Blew a head gasket and it run like crap. But know it runs dang good after a complete overhaul and a few mods.... ha ha Are you getting any fire on the middle 2 plugs like any kind of spark. If you are then it is proably going to the the head gasket. Run a compression check to make sure..

thanks we figured it out it was a fuel injector bad replaced it car runs great