The 3.2 head will do anything but make the car a pig off boost. Got to remember, the 3.2 was non turbo and was very drivable at lower rpm without boost. I would say open up the 3.2 exhaust ports slightly and perform any other nesecary mods (guides, valves) and have a blast. N/A flow charactoristics are improved when boost comes into the picture. Not to mention the car will drive nicley around town depending on the cams selected.
86' 930/GT-40R Sold
94' Rustang GT daily