RAM AIR IV bock on Ebay
Is it real, not sure but I'm leaning to no, it's memorex. 979 casting at the back of the block is all ground off and re stamped. Only the 4 should be ground off and stamped 5. also the caps appear odd, not sure why they are a different color, all of mine dirty or cleaned are the same tone so to speak. Also this one is stamped with a serial number albeit a sr number allegedly, I my be wrong but I was under the impression non were ever stamped with a number, just sr.