I have an F250 Extra Duty 4X4 with the FI 460 and a 5 speed. One of the exhaust manifolds has cracked and makes a horrid noise and leakes gas into the cab.Sooo I find myself with an excelent reason to put long tube headers and a better flowing exhaust.
My questions are:
1. Will the better exhaust upset the computer?
2. Any suggestions about brand? I don't want a drone at highway speeds.
3. Will putting a 70 timing set on the motor upset the computer?
4. Would a better flowing manifold and heads upset the computer?
AS you can tell I am afraid of upsetting the computer.
John