What Could/should It Run???

Mik,e you leafs arent worn out..they're bent (and broken as I recall on one...lol) The car has a lot in it, but needs a lot to make it work. (sound familiar to you??) I think you have too much head, and would need a much bigger cam to make it work . Teh 12:1 static in my opinion is too high for a 509. So that will drop the power band a little too. So you have static compression making power down low, the cam that should do real well in mid range, and heads that will work mid range to high. I'd be surprised if even with the longer stroke if the stall speeds stays as low as it was before. I think you made a lateral move. you'll be tweaking a bit I think searching for the same perfromance numbers.