i had an indy intake for our chrysler here at the shop it was a clover design 4500 we sent it to hvh for porting. we were having distribution problems in the motor when it came back the clover was gone. we called them and they said not to worry. all they did was remove the clover at the flange and make it look like a standard 4500 intake flange. needless to say the problem we were having was solved by removing the colver. hope this helps.