Help with 340 compression + cam change

you are better off with a solid lifter cam
I know jones has some excellent solid .904 grinds and his inverse radius rollers can't be beat especially for low compression builds

I liked the look of that Howard's cam, but I will likely check back with Mike Jones in regards to other options as well.

I might consider a solid lifter cam ...I hadn't really thought about how a solid cam could be better for a low compression motor, but I see your point.