I recently purchased a 76 Jeep CJ7 installed with a newer Chevy 350 HO 330 HP crate motor (2,000 miles) with an Edelbrock intake manifold and 1406 carb (600?) It has an HEI Summit Racing distributor.

I drove the vehicle home from Portland to SLC this past week. Two questions;

- The vehicle was running quite rough on the way home, appearing to not be running on all cylinders, poor carburation, or lack of proper timing as I was unable to determine the obvious until I arrived home. The plug wires were placed in the wrong position by the previous owner (6 & 8 were reversed.) Have I potentially caused serious damage to the engine by running 800+ miles with this setup?

- What should be the proper timing for this engine with the current setup?

Thanks in advance!.
Bob.