I run a set of procomp, which I think with name changes is speed master now, not sure. But they are a copy of the Edelbrock Victor Jr. At the time I bought them, I knew I was going to port them and remove a lot of material so I wanted to screw up a cheap set, not a good set of heads experimenting. They worked out good so I have just used them for several years. I did however buy good valves, springs, retainers, and these heads require offset rockers, so nothing was really cheap about them. If you are going to use standard rockers, the ported stealth heads would be a decent choice. All the good big block mopar heads require offset rockers, which really drives up the cost. I have not run any of the trick flow heads everybody is talking about. But just from what I have seen all the cheaper knock offs that use straight rockers all flow similar, not much difference in performance. Some of the guys on here that build more engines than me may have different experience