What Cam would you suggest with this

Your valve lift will be significantly higher. So you have to keep in mind the possibility of the valve springs binding...I'm not saying for sure it will but you have to think about that or get info from someone who knows.... maybe 318willrun. Plus you may just have a spring or 2 that are weak now... it would be a shame to compromise the new cam with a couple of wimpy old springs in there...

If you want to rev higher, then stiffer valve springs keep the valve train under control better. They will push higher the RPM at which valve float starts. Perhaps some as simple as stock 340 springs will do the job.

See post #20 here:
.454 lift too much for stock valve springs?