1970 Dart Swinger

I bought [basically] the same kit from Summit with mufflers, plus a universal X pipe-sounds pretty decent, but I have some exhaust leaks to fix now because of the casting bump on the drivers side of the block...pushes out against my headers and won't let the center primaries seal.

Interesting on the mounts-never noticed any issues, guess I should be pretty pleased about that.

How much HP is that 390 supposed to kick out anyway? You gonna put it on the rollers?