Posted: Fri Feb 25, 2005 6:46 amHave any of you ever built ports of perplex like molding compound kind of like the one they used in the seveties for those clear acrylic paperweights. I think of using that compound for making a copy of my intakeport for visibilityreasons,because i assume, being able to loo into the port through changing valve lifts with a cotton thread might give some valuable info on preferable valve angle cuts, to achieve good flow at mid valve lift, and also to see if a find shortturn gains while lifting the port, reducing short turn angle. Also i thought making a clear head dummy for a friends HD-flathead might make that more visible too. Any advices or experiences??