I checked the valves today and they all seemed to be working o.k. . All lifting equally . The missing is gone now I believe it was the spring in the dist. causing the motor to run so bad. If I am running a torker 2 cam and intake is this allowing my plugs to load up . It seems when I run it hard it runs very good but when I am cruising it seems to cough and sputter sometimes until l I get the r.p.m.'s up?what plugs should I be running . I now have a.c. delco r-44tx plugs in., are those o.k.