Dennis at midwest converters is the man we tried many other converters looking for that edge on the competion and finally found it when we installed the reactor x it helped our reaction and 60ft times we were 1.12 1.13s 60fts with no other changes the car improved to 1.10s and picked up 2 M.P.H also helped us win the 2010 I.M.S.M 7.80 pro outlaw class championship and 2 wins in the 2011 G.D.R.A 7.80 index series thanks gordy frank (petersen racing team)