Don't forget 1.6 rockers instead of 1.5s, larger cam core diameter and .875" lifters instead of .843". (Mopar is .903")Having worked on both, I greatly prefer the SBF over the SBC. No siamesed runners, distributor on the front where you can actually get to it, no issues with camshafts and EEC-IV was one of the best fuel injection setups available, even with the potential issues with the TFI module. Mind you, the block was the weak link in getting crazy HP levels, had to step up to a Dart or similar if you wanted to get much beyond 550WHP.