this also can apply to carb engines

 

600 cfmwill work best .Quadrojet is harder to tune than holley eldenbrock good out of the box is good but my opinion is the holley .When working with carburators first you must understand how they work if you don;t messing with one will get you in trouble I see it all the time guys putting in too big of cam then too big of carb not enough rear gear then they complain this carb s no good No power poor mpg surges stalls . some guys think bigger is better not true as a rule on a 400 inch motor or less 600 to 650 cfm is plenty anything bigger on a basic stock motor is a no no 700to 850 good for 429 460engine but hey a650 works great on these motors

 

So what you running on your 460 ?

 

Tune up that 2150 carb jet up to 57 duel exhuast it play with the timing and she should run good I got a79 f250 4x4 410 gears 33 inch tires and got plenty of power .I had another 79 f150 with 3.50 gears 4 spd headers and eldenbrock intake and 600 holleyran real good and I got 15 mpg on long trip .If you just off roading do you really thing your going to get mpg? Id say power is more important off rd than mpg

 

Ps make sure you chokes working right and check your choke pulloff

 

I'm installing 255Deh cam,straight up timing chain, Edelbrock performer 400 intake with Holley 650 vacume secondaries on remanufactured 400 bottom end with stock heads. Hopefully they will work all together with the truck in my sig. Yee ha!

 

WE got one Guy right one wrong Montana Highboy is right You always run ported vac off base of carb to vac advance never direct manifold vac to vac advance If you do this yes you will have advance at idle and up but when you dropp the hammer you will have very little vac so no vacuem advance result ing in less power. On one other note When adjusting carb with fuel mixture srcews hook up your vac guadge to manifold vacum turn screws in or out to get highest vac reading this is where you will get your best idle and mpg and power

 

That's been covered already So again I ask what carb are you running on your 460?

 

WOW lots of new stuff here.

Valley pan, looks like yet another very good reason not to run one. I see no need and no up side for you to putting that back in or even replacing it. I don't know where that water came from, lots of options, and really I don't think it matters. You're fixing it.

Timing chain, uhm EEEEEEK don't use it, looks pretty darn stock to me, and what's with the rust. No freaking way should you put that back in, and it's sure looking like a stock retarded version.

X2 Redroad is absolutley right about retorquing, ANYTHING alumuminum should be retorqued, most important wheels but that's something else.

X2 AK FORD GUY is absolutely right about the "Right Stuff" I love that s***. Same with not using end gaskets and the gap at the corner of the head.

*Office Space Boss Voice* "I'm uhm going to have to uhm disagree with you there" lol. Anyway, I disagree with redroad and I guess the mighty Edelbroack about the valley pan, you shouldn't use it. For Edelbrock it's a performance thing to help cool the manifold, that and they're carbs are sensitive to heat. For you a hotter manifold is a good thing as it's good for MPG and you don't really have to worry about overheating the carb with a Holley and the spacers.

Putting it in is also a bigger chance of a vacuum and more important a coolant leak as there is just that much more to go wrong. They just don't seal well.

The water, no matter where it came from, hard to say. But really a small amount of water isn't a big deal in the engine. Ya get condinsation in there, no way around that. There's water in the air and in the exhausts gasses that blow by, it builds up. It's kinda absorbed by the oil and leaves with oil changes, no big deal.

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@ Meangreen460

Please read the rest of this thread at least a little. He's not using a motorcraft carb, and we have more then covered timing.

Jetting up for milage, WTH?

Please please PLEASE try a little editing before hitting "submit reply" That's one hell of a ramble with very poor punctuation making it very hard to read.

No thermostat, WTH?

Vacuum advance, PLEASE not this again.

No way in this world am I going to debate you on any on any of this when I can barely even understand what it is your trying to say and you haven't even bothered to read and understand what is going on here.

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OK back to Rob;

Do you have an intake gasket that fits the head ports real well?

Intend to port match the manifold?

 

I don't have an intake gasket yet(on order). I can do porting when I get my gaskets.I'm looking for double roller ,straight up timing chain set now(cca2121)?

 

Sure CCA-2121 is fine. They're not really going to specify "straight up" most will be and anything with an adjustment, as most are will be.

Like that 2121 it will have different notches used to advance or retard it. But the 0 will be clear and you just use that notch.

 

redroad My 460 is a fuelywith some minor mods air intake system bigger throttle body headers duel exhaust all emissions gone thottle body spacer 33 tires beefed up springs is a f250 with 1 ton suspention with the big front axle dana 60.I also have a 79 f250 with a 400 4 spd a 78 f150 with a 460 4 spd and a 2003 v10 superduty. The 78 f150 460 4spd has a mild competition cam eldenbrock dual plane intake and a750 holly duel exhaust 3.50 gears 265/75 15 tires

 

I want to down the road change the 95 f250 from a fuel injected to a carb rebuild the engine first it has 200k on now is my main work truck

 

Just money and time as of this summer I got to paint my79 f25o I just got this truck a yr ago from Wyoming only 44k original miles wasn;t much paint left on it truck was all original .A one owner truck.As of nowI 4 trucks.may need to sell one.Super duty may go first

 

And to all you other guys I'm sorry was a little slow on the typing and I got into this thread a little late.I'm new on here and not the fastest at typing.I was a Master Mechanic 20 yrs at a Ford Dealer .worked at a Gm dealer a short time /what a joke also Worked on the big rigs But that was 18 yrs ago now.I am a builder now since 1992 but I still do all my own work on my trucks tractors bobcat; trailors and my wifes Mustang and her Durango.