...I was hoping to help the situation by adding a vent to where the
mechanical fuel pump was located and then teeing it into the hose from the
valve cover to the carb....
If the connection to the carb is not providing enough vacuum to suck the
crankcase pressure from the valve cover, then I would not have thought that
providing an alternative venting route that still goes into the same carb
connection would help at all - the problem lies in the carbs' ability to
suck, not in getting the crankcase gases to the carb. Unless the exit from
the valve cover is blocked, in which case you could fix it simply by
clearing the blockage.
This does seem to be a common problem amongst those who have swapped carbs.
Unfortunately I'm not one of them (I'm in the UK so we get decent carbs to
start with!), so I don't know what the solution is. Maybe the vacuum in the
intake manifold itself is stronger than the point used in the carb - tapping
a hole into the manifold and connecting that to the breather might help???
Just an idea, don't sue me if I'm wrong!!!
Richard & Daffy
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