Inject the 440 and put that 518 behind it. Would be less work and expense, wouldn't it? Will the XFI system you can get cheap be made to work for the 440?
1969 Dart GTS 340 1969 Super Bee X9 N-96 1969 Coronet R/T X9 N-96 2015 Dodge Dart GT 2019 Ram 2500 Big Horn. Looking for the original block for my Bee. The last 4 are 7449