I was refering to stock Eddy's. Not ported ones like yours. Of course ported Eddy's will out power stock Iron Rams.
Who told you cast iron can't be repaired?? If you ever make your way to Illinois stop by and I'll show you an X head me and a buddy repaired that I accidentally ground through the intake roof on. It's been running on my 360 for over 3000 hard miles now with no problems. Also several yrs. ago I was involved in repairing a broken iron block out of a forklift and it worked fine after we were done and lasted for several yrs. until the rings finally wore out. I also personally watched a guy weld up a crack in the 327 block in his 68 Nova and it lasted fine. Cast iron can be repaired if you know what your doing. It's time consuming but it can be done.