modified firing order big block

Thanks for the article. I had forgotten than GM went to this, so this means that the newer Ferd 351, the newer GM LS, and the modified Mopar firing order is in fact the same. I'd sure like to see something besides HRM, though LOL

I agree on the HRM :icon_smi:. I found it interesting that the guru's later in the article had no concensus as to if and why it worked...lol.