327 Ported vs. Manifold vacuum
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Joined: Dec 2018
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From: Arizona
327 Ported vs. Manifold vacuum
This may be a stupid question or one that's been asked & answered before but here goes...
I'm trying to maximize initial & total timing on my 327. I've reviewed Lars' timing papers & read here that I need to connect my vacuum advance to manifold vacuum. Do I need to add an additional port like the fitting in this pic? I currently have a 400 trans. with power brakes so the current fitting has 2 ports. Thx in advance!!
I'm trying to maximize initial & total timing on my 327. I've reviewed Lars' timing papers & read here that I need to connect my vacuum advance to manifold vacuum. Do I need to add an additional port like the fitting in this pic? I currently have a 400 trans. with power brakes so the current fitting has 2 ports. Thx in advance!!
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Or simply put a T fitting in one of your current vacuum lines. Or look to see if you have an extra port at the base of your carb.
Is my vette stock?? HAHA
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what carb are you running. is the rest of the motor stock? What is your initial timing and overall timing?
Is my vette stock?? HAHA
Joined: Oct 2015
Posts: 20,216
Likes: 9,354
From: Im not allowed to tell you
2020 C3 of the Year Finalist - Modified
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
And check all the little rubber port plugs to make sure they aren’t cracked
