Speedmaster Small block porting tips and results Part 1
You have the port working and the short turn as is can't handle the extra speed and or flow? If that's what's happening then I think for a lot of us that's where the magic happens. Finding that extra up top without losing the low to mid. As I have discovered that's not something the average Joe pulls off.
My first set was a set of Js that were monsters in the low lift but peaked relative low at 255 at .500. I didn't have the nuts to do anymore to them. Second set (speedmasters) which remains unfinished flow a little over 20 cfm peak but my lows and mids suffered. I got a little wilder with them. I either need to get them in the hands of a pro for some advice or just have a valve job done and see where we are. I know I probably should have had it done first.