[CanuckRS]

I am researching building one of the ST engine variants and am looking to the collective knowledge of this board to fill in the blanks...This is what I think I know based on Bruce Anderson's Performance Handbook and Patrick Paternie's Porsche 911 Red Book...

2.3 - 2247 cc
Bore - 85 mm
Stroke - 66 mm
Compression ratio - 10.3
Twin plugged heads ???
Intake Valve - 46 mm ???
Exhuast Valve - 40 mm ???
Cam - 906
Case - Magnesium or aluminum ??
Cylinders - Biral or Nikasil ??
Rods - S ??
Fuel Injection or Weber 46 IDAs

2.4 - 2380 cc
Bore - 87.5
Fuel injection
Everything else same as 2.3 ??

2.5SS - 2466 cc
Bore - 89 mm
Cylinders - Nikasil
Everything else same as 2.3 ??

2.5LS - 2492 cc
Bore - 86.7 mm
Stroke - 70.4 mm
Mechanical injection
Everything else same as 2.3 ??

Any comments and recommendations are welcome

TIA...