Actually it starts pulling hard past 3500. Several times last summer I was having some fun...........thank goodness for rev limiters.:thumbsup: The 302 spins so freely that your at 6500 in a blink of an eye.Think I only ran it up to 5500 or so, and could definitely tell a major difference after 4K.
What type/brand of rev limiter are you using? Mine revs up so fast with the 4.56 rear gear it scares me that I may push it over the edge. I want to enjoy this engine, but not destroy it.