Eddy head question

So where to begin. I did the 318 build out of the Engine Master magazine where the used Kieth Black pistons with closed chambered 360 heads and with a few other things made just over 400 hp. Well I was short on cash and had to use a set of higher cc open chamber 360 heads.
The motor has ran pretty good but I feel pretty certain im losing in the hp section due to my heads. Right now my compression ratio is around 8.5:1 to 9:1, each cylinder is right at 145 psi, what ever you guys think that is about. So my question is, will the Edelbrock RPM heads fit on a 318 that has been bored .030 over, and since they are 63 cc and closed chambered will it make my motor ping? I heard that aluminum heads can run a little higher on the compression without worry of pinging. And last, can I use my stock valve train? i hope so because these heads are gonna break the bank a little, I just really want to get them cause I feel it would really bring my motor to life, what do you guys think? thanks for any input! dartkory