What 4 barrel for a flathead
Thread Starter
|
Elder User
Joined: Jun 2011
Posts: 940
Likes: 4
From: Illinois
What 4 barrel for a flathead
Anybody put a 4 barrel on your flatty? What kind? what size? ppl say better than a 2x2? easier to tune? Speedway has a 390 cfm holly and a offy manifold.
Offenhauser 1949-1953 Flathead 4-Barrel Intake - Speedway Motors, America's Oldest Speed Shop Think its worth the money? I know you all prefer the 2x2 but isnt the 4 barrel easier to tune?
Offenhauser 1949-1953 Flathead 4-Barrel Intake - Speedway Motors, America's Oldest Speed Shop Think its worth the money? I know you all prefer the 2x2 but isnt the 4 barrel easier to tune?
Elder User
Joined: Sep 2007
Posts: 968
Likes: 0
From: webster wi
im running a offy intake and a holly carb mines a 600cfm. they don't recommend that big of a carb but im board, stroked, and camed. so it seems just fine I'm only running it because it was free but tuning wise i bolted it on and drove.
Fleet Owner
Joined: Jul 2004
Posts: 27,294
Likes: 1,055
From: NM
You can guess! It isn't just that you're using two carbs all the time but you're using two 1940's-era carbs with two unsophisticated circuits (idle and main jet) versus the infinitely variable jetting of the metering rod setup in an Edelbrock.
Note the stock dizzy (Loadamatic) won't work well with either.
Note the stock dizzy (Loadamatic) won't work well with either.
Elder User
Joined: Sep 2007
Posts: 968
Likes: 0
From: webster wi
Trending Topics
Fleet Owner
Joined: Jul 2004
Posts: 27,294
Likes: 1,055
From: NM
It will "work", but there is no way for it to get a vacuum signal at light loads/cruising RPM to mimic centrifugal advance. The 94's have a special circuit to do that.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
I'll have the Roast Duck
Joined: Jul 2002
Posts: 9,622
Likes: 110
From: Northshore, MN
Arguably, 300 cid Ford's work the best with Offy intakes and 390 cfm Holleys, or 500 cfm Edelbrocks, or even the stock Ford 2bbl (swapped in place of the original 1bbl). The 239 cid Ford is less than that, so one can do the math. My 2 cents
Cargo Master
Joined: Jan 2004
Posts: 2,196
Likes: 351
From: Mandan, ND
There's also the school of thought about using a 2X2 with progressive linkage. Just as some say they don't work worth a tinker's dam, there's others that actually run them and say they work well.
Thread
Thread Starter
Forum
Replies
Last Post
abyars111
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
27
May 17, 2012 06:00 PM
7636074460
1973 - 1979 F-100 & Larger F-Series Trucks
8
Apr 2, 2012 03:55 PM
CamaroAdam73
Ford Inline Six, 200, 250, 4.9L / 300
20
Nov 13, 2011 12:06 PM
ramboss429
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
22
Jan 25, 2006 07:10 PM
