This classic '68 with a 383 was brought to TW for a rough running engine. They noticed brunt spark plugs wires and the timing might be off. It also might need to be re-jetted for elevation.... and as always it will get a full inspection.
Here is the power house, a 383 with aluminum heads.
The spark plug wires have been replaced and now the Holley carb will get new jetting setup.
The carb jetting setup can only go so far when your running your engine in the shop. The crew at TW looks more towards running and testing cars in real time. The below picture shows an O2 sensor has been installed at the tail pipe with the hand held meter located in the car. From here, we will run the car around town and up and down in elevation to get real time readings for a better and more precise setup.