I've got a 74 LWB I've been working on for a hand full of years. Amongst the upgrades is a 9:1 454 with an RV cam. I'm mid swap on the next round of upgrades (saddle tanks to rear tank conversion, FAST EFI, new fuel lines, 4L80E, NP241 with SYE, bla, bla). Anyway, on one of my parts gathering...