I second this. I got 79% percentile on the Psych GRE, and I was worried that that was too low. I personally don't think it impacted whether or not I received interview invites--maybe it took me out of the running for the top top tier schools, but who knows. I think as long as you get at least 80%, then you should be okay--especially since your psych GPA is good.
All that being said, if you plan to apply to Clinical Psychology PhD programs, my experience was that most programs do NOT require a Psych GRE score. Some may encourage it, or allow you to send it, but most do not require it. Ther