Carburetor choices for a 408? - Mustang Evolution

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Old 10-16-2012, 01:27 AM   #1
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Carburetor choices for a 408?

I got a 408 stroker with dart pro 1 225 cnc heads, with 1 7/8 race headers , the cam is a solid 688intake/688exhaust duration 264intake/272exhaust @.050 with a 108 lobe separtation, ( for nitrous use ) i already got a glidden victor intake already ported to the heads for a price i couldnt pass up, it has the 4500 carb pad but will a dominator be too much for this 408???? Am i better off goin with a adaptor plate for a 4150 carb nd put a 850-950???? Can any one help me out? Nd the compression is 11.7:1
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Old 10-16-2012, 12:06 PM   #2
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I got a 408 stroker with dart pro 1 225 cnc heads, with 1 7/8 race headers , the cam is a solid 688intake/688exhaust duration 264intake/272exhaust @.050 with a 108 lobe separation, ( for nitrous use ) i already got a glidden victor intake already ported to the heads for a price i couldnt pass up, it has the 4500 carb pad but will a dominator be too much for this 408???? Am i better off goin with a adaptor plate for a 4150 carb nd put a 850-950???? Can any one help me out? Nd the compression is 11.7:1
A 750 will probably serve, but depending on how much power it makes a larger one may be needed. You used to be able to get a 750 Holley Dominator carb, but I'm not sure they still make them.
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Old 10-16-2012, 12:12 PM   #3
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Oh ok bc i got a buddy selling me a dominator brand new for 400 and thats pretty cheap for the price, but i dont wanna spend the 400 if the carb is gonna be too big, i was seeing if anyone has ran a 1050 domintor
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Old 10-16-2012, 12:20 PM   #4
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Oh ok bc i got a buddy selling me a dominator brand new for 400 and thats pretty cheap for the price, but i dont wanna spend the 400 if the carb is gonna be too big, i was seeing if anyone has ran a 1050 domintor
That's a good price if your engine makes enough power to use it. I'd probably buy it and try it because you should be able to resell the carb easily if it turns out to be to big.
You could probably make it work with some judicious tuning.
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Old 10-16-2012, 05:04 PM   #5
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Yeah thats exactly what i was thinking, nd yeah ill try it out then nd ill find out lol, thanks for the suggestions!
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Old 10-16-2012, 05:39 PM   #6
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I would also pick up a jet kit. If it is to big you maybe able to jet it down. There are also some other mods you can do to help. I recommend a book that trojan once recommended to me. It's called "super tuning holleys" it will have any information you could ever want to get the carb running good or modifying it.
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Old 10-16-2012, 08:46 PM   #7
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Demon!!!!!!
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Old 10-16-2012, 08:49 PM   #8
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Demon!!!!!!
demons are great carbs, especially for high hp. but they are way more of a pita to tune then a holley unless you have lots of experience with them.,
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Old 10-16-2012, 08:50 PM   #9
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demons are great carbs, especially for high hp. but they are way more of a pita to tune then a holley unless you have lots of experience with them.,
Yeah there touchy but well worth it
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Old 10-16-2012, 11:01 PM   #10
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I will let you know what's on mine as soon as I figure it out.. Nice ride BTW.
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Old 10-16-2012, 11:36 PM   #11
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Yeah thats exactly what i was thinking, nd yeah ill try it out then nd ill find out lol, thanks for the suggestions!
You're welcome and good luck with your project.

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I would also pick up a jet kit. If it is to big you maybe able to jet it down. There are also some other mods you can do to help. I recommend a book that trojan once recommended to me. It's called "super tuning holleys" it will have any information you could ever want to get the carb running good or modifying it.
Yep it's a very good, information packed book. There may be some newer and better out these days, but if so I haven't found them yet. This book guided me through literally dozens of carb builds and issues when I was running carbs.

You will want to build you a box of carb parts, with jets as dream mentioned along with squirters, fuel pump cams, gaskets, o-rings, etc.,etc.
I ended up just buying a pre-boxed kit that had compartments for all the goodies. Easier and probably cheaper in the long run. I still have mine, even though I haven't had a carbed engine for a long time now. May donate it to a museum some day.


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