Classic GL tuning: 2,7 Type 4

[Wally]

Tell me more then about the Stateside DS pump Rob!
Do you have any specs? Gear lengths?, Does it have some sort of bearing for the pump shafts? Costs?

The idea was/is that if a 30 mm Schadeck Type 1 pump that is being sold as is, also fits a typ 4 when you clearence the cam bolts (partly by recessing the bolt heads a bit into the cam gear), other typ 1 pumps should fit then just as well...
Or am I thinking too simply?

Tnx,
Walter