13b 4 port turbo manifold

[mpk490p]

hi all,
i looking at turboing the 13b 4 port in my gen 1 with a blow through set up with weber 45 carb, would a 12a or 13b 6 port turbo manifold fit or would i need to make up a custom one? if so can anyone recormend somewhere

thanks
Mark

[MikeLMR]

I think the exhaust ports and studs would match up fine for any 13b turbo manifold (even one designed for a 3rd gen)  but you might find that the manifold or turbo hits the inlet manifold so just something to bare in mind when looking.