Are there other air cleaner lids that are the same as the 273 commando air cleaners? I am trying to find one for my '65 Valiant, and the chrome Commando air cleaners are a little more money than I have to spend on one. Are there any differences (early to late 273 Commando). Also, would they flow enough for a 360? I'm trying to make my engine look like a 273. Also, are the Commando Valve covers the same as a regular 273 cover except for the aluminum trim?