diff --git a/build/pdp10-ka/config.202 b/build/pdp10-ka/config.202
index 25433dc9..23cec719 100644
--- a/build/pdp10-ka/config.202
+++ b/build/pdp10-ka/config.202
@@ -235,10 +235,10 @@ DEFOPT IMXP==1		;HAS IMX (INPUT MULTIPLEXOR)
 DEFOPT NETP==1		; Has net connection
 DEFOPT IMPP==1		; Has IMP interface
 DEFOPT KAIMP==1
-DEFOPT IMPUS==306	; ARPA net host number
+DEFOPT IMPUS==176	; ARPA net host number
 DEFOPT IMPUS3==<IPADDR %IP%>	; IP address
 DEFOPT NM%IMP==0	; Subnet mask (doesn't appear to work if set to real mask)
-DEFOPT NCPP==0		; Flush NCP code
+DEFOPT NCPP==1		; Arpanet NCP code
 DEFOPT NNETCH==20.	; # NCP net channels
 DEFOPT INETP==1		; Include Internet code
 DEFOPT TCPP==1		; Include TCP code
diff --git a/build/pdp10-kl/config.203 b/build/pdp10-kl/config.203
index 137d5ac7..08b13ec2 100644
--- a/build/pdp10-kl/config.203
+++ b/build/pdp10-kl/config.203
@@ -511,10 +511,10 @@ DEFOPT TCPP==1		; Include Internet TCP code
 DEFOPT XBL==25.		; # TCP connections
 DEFOPT IMPP==1		; Has IMP interface
 DEFOPT KAIMP==1
-DEFOPT IMPUS==106	; ARPA net host number
+DEFOPT IMPUS==176	; ARPA net host number
 DEFOPT IMPUS3==<IPADDR %IP%>	; IP address
 DEFOPT NM%IMP==<IPADDR %NETMASK%>	; Subnet mask
-DEFOPT NCPP==0		; Flush NCP code
+DEFOPT NCPP==1		; Arpanet NCP code
 DEFOPT NNETCH==30.	; # NCP network channels
 DEFOPT CHAOSP==1	;NO CHAOS NET
 DEFOPT MYCHAD==177002	;CHAOS NET ADDRESS
diff --git a/src/system/its.1652 b/src/system/its.1652
index f8c44222..9703ea5a 100644
--- a/src/system/its.1652
+++ b/src/system/its.1652
@@ -21950,7 +21950,7 @@ IEND:
 ; start at the right place.  There is a limit to how high it can go,
 ; however.
 IFN KL10P, SALV==:105*2000	; MC-KL is getting huge
-IFE MCOND KA, SALV==:105*2000	; KA is also getting huge
+IFE MCOND KA, SALV==:110*2000	; KA is also getting huge
 IFNDEF SALV, SALV==:100*2000
 IFG IEND-SALV,.FATAL System overruns SALV start addr!
 
diff --git a/src/system/salv.317 b/src/system/salv.317
index 000da321..80300d7d 100644
--- a/src/system/salv.317
+++ b/src/system/salv.317
@@ -113,7 +113,7 @@ PRINTX /Which machine? /
 	LIGHTS==4	;PI
 	];ML
  IFCE MCHN,KA,[
-	SA==105*2000	; KA system is big, need to push SALV higher.
+	SA==110*2000	; KA system is big, need to push SALV higher.
 	FIRSPK==0
 	LASTPK==3
 	NUDSL==500.