SQL Pass Varchar(max) Value To A Parameter

 Hi, I have a SQL table with a column field type varchar(max). It stores large amounts of text (actually HTML). I am trying to write an insert statement but cant figure out how to pass varchar(max) value to a parameter. I am using VB. The value is being passed from a formview control label.
 I get the following error:
 "Conversion from string "@manualtext" to type 'Integer' is not valid." from this line:
dbComm.Parameters.Add("manualtext", SqlDbType.NText, "@manualtext")
 Here is what I have so far:
  ' Get HTML text file from formview control label
Dim t As Label = CType(Me.FormView2.FindControl("manualtextlabel"), Label)

' get record number from querystring
Dim param = CType(Request.QueryString("record"), String)

' connect to DB
Dim myconnection As SqlConnection
myconnection = New SqlConnection()
myconnection.ConnectionString = _
ConfigurationManager.ConnectionStrings("MYCMSConnectionString").ConnectionString

' SQL statement
Dim strSQL As String = "INSERT INTO dataentry " & _
"(project, manualtext) VALUES (@project, @manaultext)"

Dim dbComm As New SqlCommand(strSQL, myconnection)

' create and pass value to parameters
dbComm.Parameters.Add("project", SqlDbType.NVarChar, 50, "@project")
dbComm.Parameters("project").Value = param.ToString()

dbComm.Parameters.Add("manualtext", SqlDbType.NText, "@manualtext")
dbComm.Parameters("manualtext").Value = t.Text


Try
myconnection.Open()
dbComm.ExecuteNonQuery()

Catch ex As Exception
Response.Write(ex.Message)
Response.End()
Finally
If myconnection.State = ConnectionState.Open Then
myconnection.Close()
End If
End Try
' ****************

Dim newloc = "viewdetail.aspx?record=" + param
Response.Redirect(newloc)

End Sub 
Thanks for the help.