What is Pat Boones specific religion? He only seems to claim christan,
I am interested in the specific religious affiliation, Southern
Babtist, Mormon, Etc?

Hello.

Pat Boone's specific religious denomination is Foursquare Gospel.

sources: 

"For the past three decades, Boone has been a member of the Church on
the Way in Van Nuys, a Foursquare Gospel congregation led by pastor
Jack Hayford. The Pentecostal church is home to numerous celebrities."
source: goodnewsetc.com
http://www.goodnewsetc.com/91SND1.htm

"Dr. Jack Hayford of The Church On The Way, and Pat Boone, are Foursquare members."
source: lifechurc.4t.com
http://www.lifechurch.4t.com/who_we_are.htm

"Pat Boone is a member in the 10,000 member of the Foursquare Gospel,
Church on the Way pastored by Dr. Jack Hayford in Van Nuys,
California;"
source:
Council for National Policy:
http://www.seekgod.ca/cnp.be.htm#boone

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If you'd like to learn more about Pat Boone's religion, visit the
International Church of the Foursquare Gospel's web site:
http://www.foursquare.org/index.cfm?cat=about

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search strategy:
"pat boone is a member" church
"pat boone" foursquare

I hope this helps.