SCM-2926 Supercharger manifold
www.inliners.org/larrowe/index.html If you do not have it already get the Leo Santucci inline 6 power manual great help in hot rodding these motors.If I found a complete rebuilt 6 cyl set-up w/ a/c and p/s I would trade my rebuilt 355 shortblock and good running 350 engine for it .