http://www.dbindustries.com/album1_006.htm
DB industries first introduced the 3-valve head in 1981 and ran them until 1998 when NHRA outlawed them. They were instrumental in setting the fuel altered record in 1993 at 5.612 that lasted for 7 years.
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DB industries first introduced the 3-valve head in 1981 and ran them until 1998 when NHRA outlawed them. They were instrumental in setting the fuel altered record in 1993 at 5.612 that lasted for 7 years.