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?

I have a Bud going to run a 557 MP cam(RB engine) in his RoadToad with exh mans ....BUT WITH a UPgrade of the exh system from the mans back.

He is going to do some carbide burr and tootsie-roll work on the mans front-to-rear to open-em-up.

Talk to AndyF.He has done many BB motors with manifolds and this cam with impressive results.I would imagine the characteristics would be the same in the SB.

Go to Dwayne Porter.