These pictures show a W2 gasket placed on a Trick Flow small block head. Very close fit. This will not impact performance. You could also do a little grinding on the adapter to get it closer if desired. This gives you an idea of how the W2 adapter plates will fit the Trick Flow heads if you go this route.
great timing. Lol I was looking up weld up header kits and came across this company. What do you all think about them? Has anybody user them before? This was a list I was playing around with. So I haven't bought anything yet.
