distributor advance
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Senior User
Joined: Jul 1999
Posts: 228
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From: Poynette Wisconsin
distributor advance
How much does the vacuum and mechanical advance in a stock late 70's 351m/400 distributor actually advance the timing when they are both maxed out? Reason I'm asking is because I have a new cam in my 351 and I want to set the timing as close as I can before I drive it anywhere. I would find out for myself but I think my neighbors might get mad. They did not seem too impressed when I broke in my cam with the new headers so I don't want to push my luck. Thanks!!!!!
Moderator
Joined: Jan 2001
Posts: 56,966
Likes: 2,728
From: Virginia
distributor advance
They only thing you can do is set the initial timing with a light. The rest varies from dist to dist and requires lots of tuning and road testing. The fun is just begining.
Lead Driver
Joined: Nov 2000
Posts: 6,623
Likes: 342
From: Albuquerque
distributor advance
My experience with the 351M/400 with a few mods indicates a craving for initial advance. I run 18 degrees initial plus about 20 mechanical for 38 total plus about 6 in the vacuum canister. I found that to get enough initial you tend to wind up with way too much total. You need a distributor with adjustments for vacuum and mechanical in order to do it right.
1977 Ford F-100
400m/c6
280,000 miles
Stock on the outside
modified/rebuilt everything
1977 Ford F-100
400m/c6
280,000 miles
Stock on the outside
modified/rebuilt everything
Thread Starter
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Senior User
Joined: Jul 1999
Posts: 228
Likes: 0
From: Poynette Wisconsin
distributor advance
I did a little homework, and I want to try and re-curve my stock distributor before I buy a new one. Has anybody tried those re-curve kits from Crane Cams?
Lead Driver
Joined: Nov 2000
Posts: 6,623
Likes: 342
From: Albuquerque
distributor advance
I should note that I'm in ABQ,NM and am 1 mile avove sea level. When I go to PHX I have to retard the timing about 4 degrees or it pulls me throught the stop lights.
1977 Ford F-100
400m/c6/4:11/Gear Vender O.D.
Crane hydralic roller, forged, ported polished,Deamon,Edlebrock, yada, yada, yada
280,000 miles
Stock on the outside
modified/rebuilt everything
1977 Ford F-100
400m/c6/4:11/Gear Vender O.D.
Crane hydralic roller, forged, ported polished,Deamon,Edlebrock, yada, yada, yada
280,000 miles
Stock on the outside
modified/rebuilt everything
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