Crankcase ventilation using old tins???

[cv65]

If you have hole at rear of block or{draft tube} you can use a vented fill cap and one of these kits for rear, not as good as cross flow imho.http://www.ebay.com/itm/55-56-57-Che...25.m3641.l6368
took another read of thread and see you dont have a hole at rear of block ,I would go with something like Scuderia sugested.

[dracko]

Thanks for the info Mackie, being a firefighter I have a good idea of what positive ventilation is. I'm simply saying that my '68 327 is only vented through the oil fill tube.

Maybe 1968 was an anomaly because it was the last year of the 327? I can see now what the flat boss near the distributor is for, but the hole was never machined in the block for a PCV. Prob be better off with the PCV valve but I plan to run the engine as is.

heres some pics. These are the original valve covers but i'll be running some scripted covers.

[SuperCtruck]

Ive done alot of digging and found what Brad_54 was talking about. Good stuff here.

http://www.stl-vettes.com/65Vette/re...z4/pcv/pcv.htm