I don't have your answers either. I can tell you how I handled my similar situation.. I ended up rebuilding a NA motor with Unknown Sourced heads.. I modified my Gears to make then adjustable, as they were WAY off.. If I was to do it again, I'd buy a set of adjustable Gears.. On my NA I ended up with a Compression pressure of 235PSI.. so a LOT had been carved off of the heads. Cj
|