Just remember 7400 is a lot harder on it than 6800 is so test to see if it’s worth it. It may go faster, or is may go slower. My 422 with a .650 solid lifter cam is going on 4 hard years and I had planned a winter rebuild that didn’t happen. The fastest that engine ever went was a 5.98 last October. To take it a little easier on it I changed my shift chip from 7000 rpm to 6700 and in way worse air it ran 6.06@111mph into a headwind
