I have a big mess all my vacuum line are not hooked up at all and i have no idea wear to hook them up. can any one help me with this. Engine is a 351m from what the vale cover says. Hear are some pics if it would help.

first ones goes to the disturber wear does it hook up to?


This one goes to the water pump and has 2 lines coming off of it. Wear do both of them go?


This one was hooked to the top of the carb but idk if that is wear it goes or not.


This is the only line at all that had a "pull" to it and was hooked up to the back of the carb driver side

 

Also do i need them or can i just cap them off?

 

Just FYI this is in the wrong forum, a 351M is a 335-series motor. It doesn't really matter though because these are common setups so your questions will still get answered as follows:

First picture: the line on the distributor goes to ported vacuum on the carburetor. Ported vacuum is vacuum above the throttle plates. On a stock 2 barrel carb, usually there is a spot for this by the driver side mixture screw, and on the passenger side under the choke housing.

Second picture: This is a ported vacuum switch. Ported vacuum on the carburetor runs to this. The other side of the switch can run to your EGR valve or evaporator purge valve, depending on the setup.

Third picture: The metal line with the short length of hose goes to the barbed fitting on the air horn of the carburetor which is close by. It pulls air through the choke housing. It was hooked up correctly before you disconnected it.

Fourth picture: this is a manifold vacuum tap, from your description it sounds like it was going to the choke pulloff on the carburetor which is correct.

Yes, you need all these lines. You can't cap them off, if you do then you are in for a world of trouble. Cost-concious Ford engineers didn't add unneeded hardware to these motors; if it's there then it's serving a purpose. Don't "fix" what isn't broken. Hope that helps. Here is a general vacuum diagram you can use:

 

Thanks for the help. Ya i seen the 351 and as soon as i posted i seen the 335 Series- 5.8/351M, 6.6/400, 351 Cleveland my bad. Is it normal to have no "pull" in the lines at ideal. The only one that does is the manifold vacuum tap. Hear are the other 4 i found that have no "pull" at all.

 

The ones that have no "pull" at idle are ported vacuum. That means that they are sourced above the throttle plates. At idle, the plates are nearly shut and there is no vacuum signal there. Only when the throttle opens does ported vacuum get a signal.

The two bottom arrows - "other side of the metal plate" and "bottom of the carb next to the driver side mixture screw" - those are ported vacuum locations. They won't have vacuum at idle, but if you open the throttle and rev the engine, they will have vacuum. Your other two arrows - I'm not sure where you're pointing to. There are no vacuum sources there that I know of on a 2150 carb.

FYI - all vacuum sources need to feed a closed system. That means you shouldn't have any open vacuum ports. If it's not going to anything, you need to cap it off. The two bottom spots on your carb should be going to things, however. Typically these ported vacuum sources go to EGR and distributor vacuum advance.