I purchased a very nice, frame on restored 65 Malibu SS that is going to make for a great driver. The car is stock and original except for: 700r4, just did this. 69 chevelle FDB, MC and PV Early 70's 4bolt 350 block. Unsure of the heads as I have not seen the casting numbers yet 350 valve covers with side to side PCV flow OEM, late 60's Open element air cleaner Early 60's vette oil filler tube with pcv boss I want get the motor looking back to original as possible. I want to use the period correct 327 valve covers which do not have either breather or PCV valve accommodations. So, I need to improvise a bit here and would like to hear some suggestions. I can and plan to use a PCV valve in the vette oil filler tube for the vacuum side of the circuit to the carb base. But, where do I establish venting to the motor itself without the draft tube boss which was excluded a few years before this block was born? Thanks ahead for any help here. Posted using the Full Custom H.A.M.B. App!