I‘m enjoying the hell out of mine. Drove mine back from Gupton in Springfield, TN to north Houston on Tuesday/Wednesday (Roughly 800 miles) Did my “advanced break in plan” and gave the engine a nice better than the book break in. My build looks solid, no rattles or creaks (my 4XE has a horrible creak in the SOT).
This is my 1st 392, but I had some unexpected observations (Maybe this is common knowledge). Even with the enhanced exhaust off, if you get on the accelerator hard, the exhaust temporarily opens up. Does the 392 have better sound proofing? Reason I ask is the cabin is noticeably quieter than my 4XE, and my 4XE has a Hothead liner installed under it’s SOT. If sound proofing isnt better in 392, I’m wondering if the 2024 changes might have snuck in there on the 20A? Just for giggles I tried to “hyper-mile” to work this morning. I was able to get 19.4 mpg.