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I put those heads on my 92 350 tbi. Build is not complete yet but I'm doing an EGR delete due to the fact that emissions tests are no longer required where I live.
I recommend XRF brand. I just replaced my entire front suspension with XRF and couldn't be happier!! Plus, they offer a million mile warranty!
They were the ONLY brand I could find that actually told you what kind of metal their products are made from.