What package/model did these come on originally? Almost looks like a dedicated marine application as the height of the risers is staggered. Untitled by Choptop32, on Flickr Untitled by Choptop32, on Flickr Untitled by Choptop32, on Flickr
no. They are blocked off intentionally by the previous owner. One of the things I need to fix.... he said with the secondaries working all it did was burn more gas, didnt go any faster...
If you post those pics over on the FE forum (www.fordfe.com) you will get plenty of opinions. I'm no guru, but it looks as if those carbs are sitting pretty high up to be a piece that came stock on a car, may be something that was sold across the counter as a hi-po part. No dates cast near the T-stat housing? The list numbers on the carb air horn would be helpful as well. If Mean Gene checks in, he'll probably be helpful. Looks as if it will get that boat movin'!
Just my opinion, but that manifold looks to be a Medium Riser and maybe an "over the counter" item. The Medium Riser came originally on 427 Fairlanes and Comets in 1966 and 1967. Also on the big block Shelby in 1967 but those had C7ZX part number cast into them. I've heard the Fairlane manifolds came without the casting number and the ones sold by the Ford parts counter didn't have a part number on them either, just the "FoMoCo" that you show. The Medium Riser manifold is quite high in the rear like that - from the carb baseplate down to the block off plate. I had both a Low-Riser and a Medium Riser 2x4 manifold side by side once and there was quite a difference in manifold height.
I'll post 2 of the pictures on the FEForum and ask the question. Pictures posted there >>> now just wait for Meangene...........
yeah... I really dont trust the opinion of the previous guy... lots of things could be wrong here... no advance, prop cavitation... lots of things.
It is a 65 up no casting number Medium riser intake. They where sold over the counter and came on the 67 Fairlanes and Comets. Does it have a date code anywhere? Maybe around the T stat housing? What head casting numbers are on the motor? thanks Lance.
As others have said its a medium Riser 427 dual plane. What carbs are they? 66~67 comets and fairlanes in 66-67 would have had Holley List: 3300 & 3301 or BC/BD carbs If it is above carbs it is a very desirable package. The Shelby's had BJ/BK carbs along with low riser 427's The hoses are hooked up to a vacuum port but should be just a single hose going from one carb to the other same as on my '67 427 Capri (factory R code)
got any better pics of the vacuum hose arrangement between the carbs? would like to get this sucker set up right. Also, where does one pick up the vacuum advance vacuum? or is it best to use mechanical advance with this set up? will check the carb numbers in the morning.
Ya think? Yeah, never seen anyone hook the vac balance fitting back to that vac port like that- all it is is a line between the two pots to balance the vacuum between them to hopefully get them to open at the same time. Usually those carbs work pretty well in stock condition, and the more they have been messed with by shade tree guys, the worse they run. This is what that intake looks like with 2" spacers under the carbs
I'm no expert but it looks like a factory Ford 2x4 FE Medium or Hi-riser to me. Definitely not a Lo-riser. Did some googling and could be a 428 Shelby GT500. http://mustangtek.com/FordIntake.html
The reason the height is staggered is because of the angle the engine sat in the original Ford cars. Since the engine in a Ford was tilted down in the rear, the angle allowed the carbs to sit level.
any tips on where/how the 2ndaries vacuum lines should be hooked up? Where does one pic up vacuum on this manifold? I'm guessing where the PCV valve is now, just with some sort of "T" to allow the vacuum advance and 2nd's to get some as well? any detailed pics of this set up on the car so I can duplicate it?
Not a High Riser, it is a Medium Riser like others have said. It doesn't look like factory carbs but we'd need to see the numbers for that. The vacuum pots with the lump on the top are later. They are the ones i used to convert a pair of 3310's to my High Riser.
This old TSB from the 427 Galaxie site shows the factory correct configuration for a low-riser set-up. Go to Page 7, I think. The factory low riser carbs did not have a vacuum port drilled because the dist. did not have vacuum advance. Or so I have been told. Hope it helps, lots of good info here: http://www.427galaxieregistry.com/1964tsb.html
worked at a mopar dealer and we got a 1963 1/2 galaxie in with 4 speed and 427 w 2 4 set up on it , it had the secondaries tied with wire to the primarys, i cut the wires ,this was in 1965 and I got to road test it might have peeled out a little!!!! had buckets and console cant find much like that anymore was a rare car in it day too
Yeah..but not necessarily with the carbs or the engine. If the boat was propped to run at a certain speed and rpm at WOT, and then the engine was changed or modified to produce more power at a higher rpm than the prop was designed for, you'd just get cavitation, use a bunch more fuel and not go appreciably faster. Mart3406 ==============
I know this post is a couple of months old, however I had a FoMoCo manifold just like this on my 302 in a '72 Comet GT. It had Dual 600 Holleys with mechanical secondaries. Getting the vacuum to work right was just to frustrating. I had a lot of mods done to the engine however. It was my daily driver. Those were the days.
The Jalopy Journal
