1600 intake manifold, carb ends were ported to 45mm, see pics for condition.
Ken that’s “factory” I’ve seen on many other manifolds. Will let the poster answer but it looks like about 38mm on the head side.Did you do that chamfer porting or do you know original application. I have one similar and thought it was factory made.
Thanks. Measure across head side please.Ken,
The manifold intake is from my 1967 super, 1600 engine. Additional pics. Not sure what all these symbols and numbers mean.
Pablo