Hello Julian
The heads are 3V 218 cc. The headers fit to the heads, and where used at the dyno.
The problem is the space, or lack of, at left side of the engine. My gas tank has a type of heat shield, and the space between this and the engine is cramped. I am unable of "squeezing" the headers into position. The stock engine and headers was tight, but fit.
Frode
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