markssupra Posted September 29, 2014 Share Posted September 29, 2014 Hi all, I am not sure whether to keep or delete the coolant feed to the IAC valve and if it would make much difference. I am using the cylinder head from Lee P's big twins car which has the small coolant feed on the head near the throttle body blanked off. I am still going to use the main water bypass pipe to feed to stock oil cooler but not sure if blanking the IAC valve will cause any problems. I could connect the feed from the head to the IAC valve and return to the water bypass as stock or block them both off. Hopefully this makes sense. Opinions please Quote Link to comment Share on other sites More sharing options...
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