Does anyone have any experience with the predator single 4 cast intake? I bought a motor the heads have been ported but the intake has not been ported. The intake that is on it is the original NRC version, I have been getting mixed reviews about getting this one ported or buying a new intake from INDY because they have redesigned it to have more plenum volume. Does anyone have any suggestions what direction to go or who has experience with porting these manifolds?