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carb helppppp!!!!!

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Old Oct 17, 2010 | 04:25 PM
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1997f1504X4,4.6L's Avatar
1997f1504X4,4.6L
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carb helppppp!!!!!

can i throw a holley 600 cfm carb on my stock manifold if i get the adaptor plate? i have a 351M and is it electric choke? any help would be great thanks!!
 
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Old Oct 17, 2010 | 05:35 PM
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steponit
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That would be a waste of fuel if you open the secondaries

That engine is not built for that much fuel
 
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Old Oct 17, 2010 | 06:04 PM
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1997f1504X4,4.6L's Avatar
1997f1504X4,4.6L
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Originally Posted by steponit
That would be a waste of fuel if you open the secondaries

That engine is not built for that much fuel

then what would be good for it?
 
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Old Oct 17, 2010 | 06:11 PM
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Do you have the stock two barrel intake. I am guessing so. I would look for a 500 cfm holley two barrel, and then get a set of headers, and a timing chain to put the cam back up 4*. This should make a big differance. And as far as the requirements of a 351m, you need to use a carb calculator to be for sure, but a 600 would only be good if you get into higher than stock rpms. With the head design and such, a 600 could be not enough if you build it for power. Best option is to get a 400 crank and do the stuff mentioned above.
 
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Old Oct 17, 2010 | 06:30 PM
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1997f1504X4,4.6L
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Originally Posted by jfive
Do you have the stock two barrel intake. I am guessing so. I would look for a 500 cfm holley two barrel, and then get a set of headers, and a timing chain to put the cam back up 4*. This should make a big differance. And as far as the requirements of a 351m, you need to use a carb calculator to be for sure, but a 600 would only be good if you get into higher than stock rpms. With the head design and such, a 600 could be not enough if you build it for power. Best option is to get a 400 crank and do the stuff mentioned above.

would it not run right off the 600 cfm?? i am lookn to just drive it around and everything want to get it built to a 400 eventually and upgrade the cam bore it out headers (if i can find some) and so forth but how would the 600 cfm do in it??
 
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