Hi Guys,installed new opti,new water pump,new160 stat,gaskets and all,fired her up ran for 10 seconds then quit,cranked some more would not start ,came back a while later ,started same thing ,checked all connections,still same ,today started her up ,reved up runs great but every once in while she stumbles and almost dies, any suggestions,Thanks for any help

 

check the igniter plug to the opti and make sure pin isnt pushed back a little. a screw loos on the rotor in the opti will cause it to shudder and die along with the optical sensor failing