Supercharged Smallblock Combination.
Well after talking with Bob @ thesuperchargerstore I ended up ordering an F-1 (Read BIG) supercharger kit with his methonal/water injection kit. Apparently the D-1 was gonna be too small for me. So the plan now is to set it up at an easy 10psi and make around 750hp on pump gas, then tune from there and up the boost.
I ended up getting the Mopar 340 replacement block (4 bolt mains, very thick walls) so it won't be too crazy in the cu in. dept. Maybe 402-410cuin. Also going with highly ported cast iron heads instead of al. (Got a deal I couldn't pass up)
I'll post some pics of the supercharger stuff gets here.