Simsy tall on here ran his cvh Williams rods at 27psi on a 5th injector mfi s1 with no issues

And in the scooby world they have been in big power builds

And a mate is using a set modified for c20xe pistons in a zetec turbo but as above its not finished yet

Just search williams steel rods and try and find reviews on the net

A tip, my mate with his zetec made a offer of £240 for the Williams rods that are £295 and they guy excepted and they came with arp rod bolts too which makes them a bargain