It's VERY essential that you keep the cdr before the turbo intake. You want the engine to eat it's blow-by. Because of the really high compression ration there will always be a significant amount of blow by. For the CDR to do it's job you'll need to have it vent into the intake, just like it is now.
I think your best intake modication you can make will be the AFE intake system, this is the best combination of airflow and cooler air for the engine.
A homemade air intake system will perform much like the SS Diesel kit in that it actually hurts performance because it's only pulling in underhood heat, factor in the fact that there is no intercooler, it really hurts performance to take in hot air.
J
1982 C10 SCSWB 6.5TD, mods too extensive to list. (13.69 1/4 mile @94.6 MPH) RACE TRUCK
1982 C10 SCSWB 6.2NA, 2.73 700
1986 C10 SCLWB 6.2TD 3.73 700
1989 V20 SUB 6.2NA, 3.73 400
1994 G20 VAN 6.5NA, 3.42 60E
1994 K20LD ECSWB 6.5TD, 3.42 80E
1995 K20 SUB 6.5TD, Wrecked, ran into by stupid teen.
1995 C3500HD DRW 6.5TD, 12' Flatbed 5.13 80E
1995 C3500HD DRW 6.5TD, 18' Rollback Wrecker 4.63 80E
1994 C20HD ECLWB 6.5TD 3.73 80E Wifes Truck.
1995 C20LD ECSWB 6.5TD 3.73 80E
1995 K20LD SCLWB 6.5TD 3.73 80E
1996 K30 DRW 6.5TD 4.10 80E
1997 C10 Tahoe 2Door 2WD 5.7L to 6.5 Conversion Underway