What's better and why? Iron heads, mods are in sig. Plan to run E85 and run the boost my turbo and fuel system will allow. Maybe 26-27 psi.
I would search but it seems that this function is currently broke.
Victor was the manufacturer for the OEM gasket. Way back when you could buy a gasket set from Felpro and it came with Victor head gaskets. Since then they came out with the 9441 PT gasket which is their version. Both gaskets are comparable and there isn't any advantage to either one.