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Sorry for the delayed response. My other computer wouldn’t let me log into the forum.
I found the short intake to add a noticeable amount of power. I also did the flat top piston and the appropriate head insert.
The front leaning angle that the short intake puts the carb at is awkward and is probably affecting the float height setting and dumping fuel where it can.
I am using the round fuel pump that is seen on most Euro shifter motors. It has two fuel outlets but I just block one and run one fuel line to the carb.