score

[Andrea Bencini]

I install
postfix-2.2.2
amavisd-new-2.3.3
spamassassin-3.0.4

I am testing spamassassin with spam-test
XJS*C4JDBQADN1.NSBN3*........ANDARD-ANTI-UBE-TEST-EMAIL*C.34X
and I receive

X-Spam-Status: Yes, score=998.359 tagged_above=2 required=6.31
     tests=[ALL_TRUSTED=-2.4, AWL=0.412, GTUBE=1000, HTML_90_100=0.346,
     HTML_MESSAGE=0.001]

Now I want change GTUBE value; in my local.cf I add the line

score GTUBE 1200

but I receive always 

X-Spam-Status: Yes, score=998.359 tagged_above=2 required=6.31
     tests=[ALL_TRUSTED=-2.4, AWL=0.412, GTUBE=1000, HTML_90_100=0.346,
     HTML_MESSAGE=0.001]

Why is GTUBE equal 1000? I changed it in 1200 !!
Thank
Andrea