Thank you, I have a new to me air cleaner for 2636 Pre-L with no Aux valve or opening for it. Painted lid, hole blocked off (riveted) on opposite side. Thinking this is a very early air cleaner ? Fit on Holley is not perfect (little too large) , I don't have a original 4300 autolite or currently intend to go back to it.
I have looked at many online pics of so called original setups and most on later # and most have aftermarket setups. Most have chrome lids, Aux valve, very very few have painted lids and saw 1 angle pic that showed no Aux valve cyl #8. orientation, painted top on what seemed to be a very original vehicle. (This example?) Consistent results with a few curveballs.
I think I will use this air cleaner but any additional claification would be helpful.
Keeping original is not possible for 2636 but stock appearance may be.
Thanks