looking for a little advice on my 340 6 pack. I currently have a 9.5 to 1 340 with a comp magnum cam 280/480 230@.050 duration running 340 exhaust manifolds and a six pack with a 4 speed. The car runs ok but I want to increase the horsepower without stroking the shortblock since it is fresh. I am considering pulling heads and having milled to get compression to around 10 to 1, porting heads, intake and exhaust manifolds and going with a little bigger cam. I was leaning towards a .528 solid(mopar performance) because I read the from a fellow moparts member that it was the best cam with exhaust manifolds. I want to retain the manifolds because it is a show car. Has anyone else ran the .528 solid in a small block with exhaust manifolds with success? Would I have to worry about the manifolds glowing with such a cam?