if too tight just remove ICV and blank it off.. I am not using one at the moment although fitted to block the hole.. not had time to sort.
yes pelum could be an issue.. the cossie one does appear to work very well.. I am using a version 1 widdenned (bigger still pelum) and adaptors to fit my v6 heads.. whcih appears to work as well as a cossie manifold.
Simon
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