Cheap 318 build questions

Summit racing or Jets will international ship.

If you do headers, Summit Racing has generic street headers with a thicker than average flange @ 3/8 thick. (9.58 mm)
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Would be nice with headers but I have to stay with the manifolds...
I can't find any good (and cheap) roller cam. Will do some phone calls tomorrow and see what it costs to have it re grounded here.