Strip Dominator - Spread bore weld up

I was interesting in having the spread bore opening converted to a true square bore on my Strip Dominator that is on my trick flow headed 409. I was reading about doing it with epoxy or welding. I don't really think I have the skills for it.

Does anyone know if there is a plate that fits down in and fills that area? I read on here somewhere that someone was making them at some point.

Any idea what someone would charge to do this? I am pretty close to Portland Oregon. Might pickup a Track Heat when they come out but I'd like to give the best I can with the strip Dominator. Whoever had it before me loos like they gasket matched it nicely ( to my untrained bad eyes). I have 800cfm on it on top of a 1" HVH super sucker 4 hole blended to open spacer.

Thanks

If you want to do something you can order a Magnafuel 5006 and take the rubber gasket and lay it on the top of the intake. Grind your manifold to those lines and run it. I would sell that HVH super sucker. I’ve only seen that spacer do anything once, and it was on an oddball engine that had some other issues.