1986 460 questions
New User
Joined: Aug 2007
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Originally Posted by Troy Bredthauer
any time you get rid of emmisions and do the mods you suggest you gain hp. mileage, and reliability. you can use your old intake, change the carb to a 750 cfm install headers. plug the egr valve, remove the vacum advance, set timing to 42 deg. @3000 rpm if the idle timing isnt where you like it, recurve the dist. to where the thing idles the best. get rid of all hoses and vac. lines. you only need 3 vac. lines. brakes, heater, trans. if 4 spd w/o ac. you only need 1. thats a fact.
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Joined: Aug 2007
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Originally Posted by Bear 45/70
You are recommending a set up that works at 500 to 700 feet in the air. This dude is in Georgia and they just don't have any altitudes that high that he can restrict his truck to. Below 2500 feet timing should be restricted to 38° max and with regular fuel probably a couple degrees less. So you really don't know as much as you think you do.
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Joined: Aug 2007
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From: Spokane WA.
What would happen in my 95 460 fueller with the pre 71 timing set. Am i gonna **** of the computer? What would happen to emissions?
I've seen the questions asked a couple times but haven't seen the number posted yet, What HP does the typ. stock 80's to 90's carbed or EFi motor put out? How bout torque?
I've seen the questions asked a couple times but haven't seen the number posted yet, What HP does the typ. stock 80's to 90's carbed or EFi motor put out? How bout torque?
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Joined: Aug 2007
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From: Spokane WA.
Ahh there's the number, Feels pretty torquey, With the 5 speed My 15 year old has taken off from as high as 3rd gear, The Daughter (old enough to know better) has shifted 2nd to 5th a couple times, the truck grunts at her and begins to accelerate.
Is my 95 ODBI or II?
How much latitude do I have with a cam swap before it interferes with programming?
Is my 95 ODBI or II?
How much latitude do I have with a cam swap before it interferes with programming?
Last edited by Stepped On; Aug 11, 2007 at 10:56 PM. Reason: corrections
Posting Guru
Joined: Mar 2006
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From: fargo, nd
speed density is the type of computer... not mod friendly. mass air is much easier to deal with. you may be able to convert to mass air using a mass air mustang computer (like the a9l)... but youd need a bigger meter and youd need to reprogram the computer for the bigger injectors... mustang injectors are 19 lb and 460 are 24 lb (i think) so youd probably have to get something like a tweecer tuner to change the programming.
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It has been years since I last worked on a 460, but I remember the old carburetor engines being reliable and tough so long as it wasn't the old 4300 or Holly. Ford did retard cam timing in the early 70s when more emission equipment was added to the 385 series, but the good news is that 351 Cleavland parts will fix it: specifically timing gear and chain sets. Any non-FI, post '72 429/460 will benefit greatly from straight up cam timing, vacuum advance sans vacuum retard, and not less than 16" of manifold vacuum at idle.
This is a true story that happened at my buddy's shop in 2004. After toasting his new 6.0 powerstroke, a farmer brought in his old 76 3/4 T 2WD supercab and said make it run again. Being a died in the wool Ford man, Don did his best to that old truck. The excessive oil burning was fixed with a new set of valve stem seals, mice were cleaned from the cab, vents and muffler, and the timing chain, gears and fuel pump were replaced along with the distributor. The usual suspect belts, hoses and plug wires were also replaced and the 4350 carb was rebuilt.
When all was said and done, I kid you not, that thing would lay rubber for a city block! It was nothing to stand on it and the tranny would be in 2nd before you covered 100'. It would also make 14 MPG, not the 10 the old boy remembered it making.
This is a true story that happened at my buddy's shop in 2004. After toasting his new 6.0 powerstroke, a farmer brought in his old 76 3/4 T 2WD supercab and said make it run again. Being a died in the wool Ford man, Don did his best to that old truck. The excessive oil burning was fixed with a new set of valve stem seals, mice were cleaned from the cab, vents and muffler, and the timing chain, gears and fuel pump were replaced along with the distributor. The usual suspect belts, hoses and plug wires were also replaced and the 4350 carb was rebuilt.
When all was said and done, I kid you not, that thing would lay rubber for a city block! It was nothing to stand on it and the tranny would be in 2nd before you covered 100'. It would also make 14 MPG, not the 10 the old boy remembered it making.