wassup mates.... my car is doing very strange... first got problems to start the car after 90 years the car will start then when i will rev it in aprox 5.500 rpm it will begin the sputter misfire alot.... do know what the problem is ....they say thats the timing ...its a 5E turbo .. and when a ran it on the streets it will begin misfire sputter from 2000 rpm clean a lilttle then misfire again in 5500 let me know need help