I had a 3000 but the drive snout cracked and leaked fluid everywhere. I was in the old mindset of mushy, slipping, heat building stall converters and for road trips was using 2.91 gears, so I put in a 2400 stall. I should have put in a 4000ish tight converter. I think I am lugging the motor with a stab to WOT. One thing I had forgotten about me changing. I had changed to a shorter tunnel ram (for hood clearance), new distributor and velocity stacks also. So, that is the likely culprit. May have to tune it the best I can and save for a custom converter. I am waiting for a reply from Ultimate Converter Concepts, but the right thing to do is wait. Unless other year's plans fall through.