http://www.crateengine.net/351393.html i found this one, is this engine any good, could i add bost after getting the forged pistons, and how much boost would be safe.
or how about this one,
http://chevystreetperformance.com/351_390efi.htm
i like this one a lot better they bild the hole thing, and i can get it custom to what i want, i tell them what i want and i get it.