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#11
05-31-2021, 06:58 PM
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Just my 2 cents,
These are over the counter universal, SB or BB smog base’s because they have the outlets for both. Assy. Line have only the SB or BB rear tube with the one face it forward to the pump. Also the studs that are in the pics appear to be 5/16” where Assy. Line I believe to be 1/4’’. I have an NOS Small block smog filter pt.no. #6422287 Tube only out the back to the breather tube hose and a tube out the front to the pump hose And it has the 5/16 stud Joe 
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