Thread: 1967 gmc
View Single Post
  #17  
Old January 30th, 2016, 08:07 PM
BobBray BobBray is offline
-= Dues Paid =-
 
Join Date: Feb 2013
Location: Los Angeles, CA.
Truck: 1967 CM 2500
Posts: 247
Rep Power: 149
BobBray will become famous soon enoughBobBray will become famous soon enough
Default Re: 1967 gmc

Quote:
Originally Posted by bigblockv6 View Post
What I would do is update the system to a 62 305D where one PCV valve was used that ran in back from the carburetor to the rear filter and eliminate the road draft tube.
This would be the best solution if you can find the parts. Road draft tubes only draw the fumes out of the crankcase when the truck is moving.

Peter, what year did they start putting the PCV valves in the heads?
Reply With Quote