So I've managed to get Q-Jet and Edelbrock Performer intake to put on the 425 this spring. What I need to find now is a 4BBL air cleaner assembly. If I can't find one specific for Oldsmobile are there any other GM vehicles from 1966 that used the same Air Cleaner housing??? I figure as long as the shape is correct I can paint it the correct color.

 

A 66-67 Olds 4-bbl aircleaner shouldn't be that hard to find. The 4-bbl base plates are the same for all of them; it's the shroud that's different depending on closed PCV- open PCV, 442- non 442, 442 automatic- 442 stick. Find a painted one with a snorkel and you should be OK. Color is orangey-red same as the 425 engine.