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Hi Im building a 440 with the new trickflow heads and was not sure if the indy duel plane has benefits over the edelbrock rpm air gap in standard port window configuration. Has anybody done a back to back on an engine with good cylinder heads to see the true limits of each intake. Im thinking...

Got some great news to share. Just found out that the 240cc trickflow head cant be opened to max wedge. However the soon to be released (july) 270cc trickflow can be opened up max wedge. Hope this helps somebody, as ive been looking for a head to replace my cnc indy ez that lasted less than 1500...