Help Needed Vac Port Routing
Thread Starter
Instructor
Joined: Feb 2013
Posts: 193
Likes: 2
From: Illinois
Help Needed Vac Port Routing
Soon to be installing my 383 Stroker into 76 w/350 TH Tranny. The carb I'll be using is the original Q-Jet, intake is a Edelbrock Performer Air Gap. Dizzy is original w/vac advance.
Question is: The carb has a total of 7 vacum connection locations, 3 lower front (1-small, 1- medimum & 1-large), 1 mid front (small), 2 lower rear (1-small, 1-big), and 1 upper rear (medimum). Intake has one, a 3/8 NPT port in the rear runner to #8 Cyl.
Which should I utilize and for what. I'll assume all others get pluged.
Is there a chart showing the intended use for each of these ports??
Thanks.
Question is: The carb has a total of 7 vacum connection locations, 3 lower front (1-small, 1- medimum & 1-large), 1 mid front (small), 2 lower rear (1-small, 1-big), and 1 upper rear (medimum). Intake has one, a 3/8 NPT port in the rear runner to #8 Cyl.
Which should I utilize and for what. I'll assume all others get pluged.
Is there a chart showing the intended use for each of these ports??
Thanks.
Safety Car
Joined: Aug 2000
Posts: 3,711
Likes: 43
From: San Antonio TX
But, the best source will be the page from the Assembly Instruction Manual (AIM) for your year car. I know it comes up frequently in responses -some times in chiding- but the AIM and the shop manual really are invaluable resources.
Instructor
Joined: Jun 2013
Posts: 222
Likes: 0
From: Toronto Ontario
After all the searching I did, I eventually found a good one right in the service manual. I then shortly after found a better one, colour coded, right on the damn hood. The whole time the original stock sticker was right on my stock hood 2 feet from my dumb face!
