ford 400 intake
Fleet Owner
Joined: Dec 2009
Posts: 20,678
Likes: 82
From: NorCal
A Weiand Action Plus (PN 8010) dual plane intake, a 650 cfm Holley with vacuum secondaries, and a 14x3 open element air cleaner housing with free-flowing air filter.
Laughing Gas
Joined: Aug 2010
Posts: 896
Likes: 55
From: Bothell
There are lots of options... How good are you at tuning a carb?
Edelbrock and Weiand both make new intakes for the 400 (or 351m, same intake). You can also find intakes for 400's used. Mose used ones will be Edelbrock but there are some odd ball intakes out there too. For ease of use I would stick to the current production style ones (used or new).
Carb wise there is the carter/edelbrock AFB choice that is pretty good and very simple. After that you have holley type carbs from several manufactures that have more room to tune in but may take more effort to tune. There is also the option to run a gm quadrajet (edelbrock makes new ones). This carb is suppose to be an excelant mileage carb but is very difficult to tune.
I run a carter on my 400 but I think I will be moving to a quadrajet or holley soon
Edelbrock and Weiand both make new intakes for the 400 (or 351m, same intake). You can also find intakes for 400's used. Mose used ones will be Edelbrock but there are some odd ball intakes out there too. For ease of use I would stick to the current production style ones (used or new).
Carb wise there is the carter/edelbrock AFB choice that is pretty good and very simple. After that you have holley type carbs from several manufactures that have more room to tune in but may take more effort to tune. There is also the option to run a gm quadrajet (edelbrock makes new ones). This carb is suppose to be an excelant mileage carb but is very difficult to tune.
I run a carter on my 400 but I think I will be moving to a quadrajet or holley soon
Postmaster
Joined: Nov 2011
Posts: 2,553
Likes: 10
For best performance, a small 4 bbl and dual plane intake can help. Other things that complement would be distributor & ignition curve set up for performance, cam timing set up for performance (factory used retarded cam timing... a "straight up" timing set, preferably degree'd in can help) and dual exhaust or better headers + dual exhaust.
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Fleet Mechanic
Joined: Aug 2004
Posts: 1,311
Likes: 31
From: Nevada
Intake
My brother just put a weiand on his 400 with a edelebrock carb, seems to really like it. As far as a 600ish carb, i had zero real experience with them and tried both the Holley and the Edelbrock, I found the Brock more user friendly and easier to tune, but thats just me, its kind of like asking what the best caliber rifle round is....... 
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