I love your math, Ian!
I'd actually run stock injectors @ ~48-50psi base pressure on a built up 7M-GE. It's not like you need to worry about a raising rate FPR (since you'll never exceed atmospheric pressure)
10.5:1 compression is a right step - did you physically measure everything (including valve reliefs) to ensure you actually ARE at 10.5:1 CR?
Bigger cams are needed. And lots of spinning. I'd lighten the rotating assembly as much as possible, zero balance the entire works, and run a set of cams more along the lines of .450" lift and 236º duration @ .050" lift, and spin that sucker to 9000rpm. Honestly, I would also run a MAF rather than SD in that situation (probably a GM 75mm to keep flow loss at a minimum)
That's just me, though
I'd actually run stock injectors @ ~48-50psi base pressure on a built up 7M-GE. It's not like you need to worry about a raising rate FPR (since you'll never exceed atmospheric pressure)
10.5:1 compression is a right step - did you physically measure everything (including valve reliefs) to ensure you actually ARE at 10.5:1 CR?
Bigger cams are needed. And lots of spinning. I'd lighten the rotating assembly as much as possible, zero balance the entire works, and run a set of cams more along the lines of .450" lift and 236º duration @ .050" lift, and spin that sucker to 9000rpm. Honestly, I would also run a MAF rather than SD in that situation (probably a GM 75mm to keep flow loss at a minimum)
That's just me, though