We Took a customers car to Dyno today. Somehow one the first run the car started breaking up bad. The Tuner said Ignition was at fault. So technicians installed MSD box and MSD coil and cap.Then on second pull car made 255hp before 5000 rpm and started breaking up.He tuned somemore and got to 269 hp
car still breaking up. Again he cant go past 5000 rpm. We are stuck any suggestions??? There is a story a mile long about the car. Everything is built and replaced on it. I wanted to start with the simple question and elaborate from there.

 

try anything simple? New plugs with a good gap on them? just a thought.

 

Give me a call at the shop and i'll go over it with you.

Tony
972-278-9744

 

Thanks alot