Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Ported Vacuum
Thread: Ported Vacuum
View Single Post
  #3 (permalink)  
Old 08-06-2006, 09:13 PM
jimfulco jimfulco is offline
Member
 
Last photo:
Join Date: May 2003
Location: Shreveport LA
Age: 64
Posts: 5,103
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Give it a try on manifold vacuum (the port with vacuum at idle) and see what happens. It can't hurt anything to try and it's cheap. Might get out the old timing light and see just how much advance is added by the vacuum can. Some add so much it makes the car miss at steady speeds. I had one that added about 25*, and it missed at cruising speeds. I went to one that matched the stock ('72 350) 15* can, and it worked great.
Reply With Quote