High compression blues.

LOL!! I'm referring to post#98, and Everybody is saying "He should be fine" with those heads & 11:1's, which he should be. Big-Block Mopars have about the worst OE spark
plug position possible, that is a factor, the TF versions are improved tho'. With that & the deck square/trim He may be fine.
Honestly I don't know what I'm talking about with Big Blocks and how much they very from small blocks as far as their tolerances for pinging ignition and all that stuff. So my comments are mostly coming from the south end!