Roy Johnson & New Dodge

[Gary Smith]

Originally Posted by hemidup

The question should be. How good of "tuner" will Roy bring to the table with his new Dodge Challenger???

Horsepower can be made or lost with one simple key stroke from a laptop.

Timing and fuel. Other than that air/fuel ratio can be adjusted through "RPM band", graph or whatever you want to call it. Last I checked O2 sensors are being used on "old school" stockers and can be adjusted too. The main difference is splitting apart carburetors and the use of a timing light vs a simple keystroke.