Rocker arm choice

With value in mind, say up to $150, which is a better idea for my pre-86 350 cid Chev with Sportsman II heads (200 cc runners, 72 cc chambers), mild cam and headers?
8620 Chromolly steel roller tip such as the Comp magnums?
Or, 2034 extruded alum. types offered by various sources. Prices about the same. Any input would be greatly appreciated.
Thanks, Mike

The COMP Magnum ones. Aluminum rockers are great for racing due to their low point of inertia, but they don't last long on the street (relative). I'm using the COMP Magnums on my 350, which I've had in there for 13 years now, and still going strong after 253,000 miles.