Who sells Webers for a 308

Almost certainly got several sets of US spec carbs for 308 if you go for the modification.

 

Ferrari DCNF trivia

Ferrari 308s use a 5 screw top DCNF as opposed to the more commonly available 4 screw top DCNF-12 (which has different stock jetting). Interesting, as except for this feature, all other parts (jetting, etc) freely interchange.
All of the jetting and linkage is widely available.
The F-UK Webers, depending on cost, would be nice as they would come with the correct linkage and be pre-jetted (pick your year and match dash numbers), which would include the somewhat elusive Ferrari tuned accell pump cam. The -12 works fine (I have re-jetted -12s on my car), but the pump cam is a bit manly and gives a heftier than needed pump shot giving a wisp of blue smoke when punched.
My dyno experience when I changed to Webers has suggested that for the same cam, removing the resistance of the K-jet is worth +/- 20 hp, more if cam timing is uprated. The biggest difference one notes over a K-jet car is the instantaneous response of the accell pumps. Not to mention the incredible SOUND improvement.
I think 2v manifold and linkage from earlier cars may well just bolt onto the injected 2vs, while 4 valve engines require a different linkage, manifold and jetting.

Hope this helps
best
Russ

Edit:
Hey Malcolm, does Ferrari-UK carry the accell pump cams for the early carb 308 Webers? Four of them?

 

Before you go that route, take a look at these, and think about sequential F.I.

http://www.redlineweber.com/html/throttle_bodies/Throttle%20bodies_DCNF.htm
Here are the systems.
http://www.redlineweber.com/html/throttle_bodies/Slideshow.htm

 

Edit:
Hey Malcolm, does Ferrari-UK carry the accell pump cams for the early carb 308 Webers? Four of them?[/QUOTE]

Russ,

Not at work today - will check on Monday

 

This would be my choice for any 308 GTBi/GTSi!

We all know the original FI that Ferrari but on them was a bit of a mess. I'd be willing to bet that with these installed, the air pumps removed, and the original cats replaced with modern high flow ones you'd be making power as good if not better than the CARB'd cars. And you wouldn't have to worry about them getting out of sync. I don't know what the going price to sync up the CARBs is but I'd bet the injectors would pay for themselves after a few years with the elimination of that cost.

 

You can also retro fit your manifold for EFI....then your all set when you decide to add a turbo or blower and make some hp

 

Sam,

You have mail.

 

Sam you will need intake runners as well--Just call TRutland and tell him what you want to do. He will give you options.
770-493-8852--ask for TED

 

Sam
While I have converted a qv to carbs, I'm approximating what I think you will need for your 2v. Luckily, the ignition and the FI are not connected, so no problem there.
Here are the basics:
New low pressure Facet 7# fuel pump (~$60)
Intake manifolds and water cross pipe from a 2v carb car. Should be available used from multiple sources, or new from F-UK.
Linkage pieces from a carb car. You'll have to trim your throttle cable a bit, but not difficult (or you can retro-fit a carb throttle cable).
Gaskets, of course.
Air filter box. The stock ones are in the $300 - 400 range used, but can get nice new racing air filters from Pierce Manifolds for $100 all total - will need the rubber gaskets from the original airbox in any event to fit the studs.
That's about it. Would recommend chaging all of the fuel hoses for good measure.

You can use the carb car parts drawings on the F-UK site as a guide on how everything pieces together.

Those F-UK American spec carbs will be probably jetted just fine for your engine. Be sure they come with the air horns that go on top!!
Good news - you really DO NOT need to hook up the choke. No one uses it much at all anyway, as the car starts fine with a couple of pumps on the gas pedal.

Be careful to insure that you hook the vacuum system back up per the carb car drawings to the vacuum take off on the manifolds.

Fuel tank evaporative system is up to you.

Carankcase breather line hooks right into the stockor Pierce airbox (nipple provided)

The thing you will notice is a lot more response, and that the carbs are a LOT lighter than the FI and the sound (especially with the Pierce filters) is quite impressive. There will be some wiring harness that goes with the FI - what you do with it is up to you. I removed mine.

Hope this gets you started. Let us know your progress. Others can chime in with what I have missed or
Good luck!!
rt