chev 4-7 firing order change

[Ed Wright]

Originally Posted by SSDiv6

There is more than swapping the camshaft and spark plug wires involved in the firing order swap.
Many times the engine will not pick up power due to the intake type used, dual plane versus single plane and it may require a change on the location of each header tube at the collector.

Here is a good article that addresses the subject:

https://www.enginelabs.com/engine-te...r-your-engine/

The guy telling about simply swapping plug wires was joking, right?

[SSDiv6]

Originally Posted by Ed Wright

The guy telling about simply swapping plug wires was joking, right?

Had to be!