is there an aftermarket cam that can give the 302 better low end?

 

Probably a modern hydraulic cam but that old solid lifter cam is a sweet sounding cam.
I don't think you'd gain much and might sacrifice top end performance doing so,the 302 is a short stroke high rev race bred engine and never was designed for smooth low end operation.
That's one reason they only came with a 4 speed stick.

 

i ment another solid lifter cam.

 

i also love the sound of those cams.

 

From what I've seen at least most of the solid lifter cams available are reproductions of old grinds but you might check around with some engine builders.
If memory serves the 302 cam was the same old 30/30 cam that came in Corvette 327's,the lack of low end power has more to do with the 302's short stroke than the cam itself.
I think most of the aftermarket solid lifter cams will likely be even more radical and not help you gain low end power.