Hellva dael BJ
It is an awesome deal BJ and if i wasn't so close on my motor i would probaly go for it. I now have all the parts, including a Lonatti black crank and alum,rods and blower pistons to go forward with my 383" motor. i did steal the heads off my motor for another engine, but can be easily be replaced. As you know mine is a 1471 littlefield and buzzard catcher motor.
I think you may be under estimating the actual HP of the motor thats for sale, with alum heads and 20 PSI boost i would call it closer to 1400 HP.
I know when mine was a 358" motor it went in the 4's in the 1/8 mile with 30 PSI boost.
JMO
Zip.