SFfiredog Mike the motors are great, do 1 small favor jack the motors up to take the stress of the block. I let a motor sit like this for 5 months and the rear bores after machine work were .0021 out of round. It was a 302 ford. The top pro stock racers DON"T use engine stand that mount like that. The new stands that bolt to the motor mounts are the better way to go. Just a thought. You are building top quality motors. What cams are you using with Speed pro and the 58 TWM's. 1 other point your fuel lines are small for your motor. I have a 452FE with Speed-pro, 55 lbs without the supercharger running and 72 lbs with 45psi at idle and 70 at WOT. I have 2 255 liter pumps in the fuel tank, both with #10 lines going to the rails and a #8 return. You need volume more than pressure with your motor. A lean out sucks. It's just a thought.
I learned the hard way Rick Lake