when I installed them last year they were all 68-70 and I had them cleaned and rescreened. They are fine, but I reccomend that evey injector that is purchased be cleaned when you get them new or not. I run 10.50s with these with stock motor and head work. I ran great at the nats this year but lost to Jason Cramer in the second round. But they do work fine. I am moving to the 83s because my pulse width is closing in on 100% at 30lbs of booooost
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