'87 f150 351 truck carb advice needed

[squonk 42,005]

29 minutes ago, elcamino/wheelhorse said:

@ebinmaine  Would that be a computer controlled carb like GM had in the 80's. If so a 50 cal. would help it. Nothing else. If my El sits for a few days , it takes for ever to get it to start. 

Computer carbs don't care about a thing until the engine is warmed up and goes into closed loop. It act's like a regular carb. Sounds like you got a leaker.

[ebinmaine 69,874]

15 minutes ago, WVHillbilly520H said:

Another thing with that era vehicles and carburetors, a dozen too many vacuum lines and switches, as they harden and shrink cracking and pin holes or broken plastic hose fitting/barbs, just a myriad of possibilities, but I'm still gonna go with the 2 mechanical parts Carb rebuild and fuel pump, then the vacuum lines and maybe even a proper tune-up plugs wires cap and rotor button ect. Even using RockAuto you can buy O.E. Motorcraft replacements... Just trying to help you out, if you can master 1 cylinder the other 7 ain't that bad.

Much appreciated Jeff. 

 

I've done work on V8s many moons ago. 

 

Can the emissions stuff be eliminated using the stock carb?

 

[ebinmaine 69,874]

21 minutes ago, WVHillbilly520H said:

.

 

 

Edited February 1, 2021 by ebinmaine

[ebinmaine 69,874]

19 minutes ago, WVHillbilly520H said:

 

 

 

Edited February 1, 2021 by ebinmaine

[WVHillbilly520H 10,376]

1 minute ago, ebinmaine said:

Much appreciated Jeff. 

 

I've done work on V8s many moons ago. 

 

Can the emissions stuff be eliminated using the stock carb?

 

You want 3 responses? Sorry had to, yes a lot of it can be bypassed, I take it this is no longer "road worthy" and unlicensed/state inspected? Usually a vacuum line to the distributor for advance unless its fully electronic, there may be 1 going to the heat riser on the manifold to the air cleaner, if there is a A.I.R. pump to the manifolds that can go to the scrap yard and plug the holes/crimp the hard lines, ect... Another thought on hard starts rough running the E.G.R. valve may be stuck open from carbon, it could be elimanted as well with a block of plate. It would best to find a Haynes manual for that truck with all the schematics that will help immensely.

[ebinmaine 69,874]

1 hour ago, WVHillbilly520H said:

You want 3 responses? Sorry had to, yes a lot of it can be bypassed, I take it this is no longer "road worthy" and unlicensed/state inspected? Usually a vacuum line to the distributor for advance unless its fully electronic, there may be 1 going to the heat riser on the manifold to the air cleaner, if there is a A.I.R. pump to the manifolds that can go to the scrap yard and plug the holes/crimp the hard lines, ect... Another thought on hard starts rough running the E.G.R. valve may be stuck open from carbon, it could be elimanted as well with a block of plate. It would best to find a Haynes manual for that truck with all the schematics that will help immensely.

It is permanently "off the road" yes. Surprisingly solid body but he uses it exclusively for plowing and sanding. 

 

I do actually have one of those Haynes around somewhere. 

 

Thanks!

 

[Pullstart 63,648]

EB if not too late, I’ve purchased one of the Summit Racing brand carbs before.  It ran super smooth, right out of the box.  I believe it’s a 600 or 650 cfm, and I also believe it’s on the ‘69 C10 with the 350 and a mild cam.  I would highly recommend using one, even though they look VERY much like a Holley casting.