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I just located a 4 barrel intake to put on my 352. It's off a 66' High Performance
390. First of all. Is it worth the trouble to go to it. Right now I have stock intake with 2V Ford carb. I would like a little more juice so I thought maybe this would be a way to go and keep the look that I have. I would like to stick with an original Holley as well. Is this wise? Was wondering what you guys thought! Thanks!
Yes it is most defitly worth it. If you want to keep stock equipement and stuff I would just keep that 2bbl carb and intake in your garage and if you have to go to a show and want it to be origanl just swap the intake and carb just a two hour job. Finding a orgianl carb from 66 might be diffuclut. I would honestly just get a new holley for $240. Or a rebuilt one for cheaper. It will defintly increase your power output and should burn those tires up more. Get a Vac Sec 600cfm 4bbl holley that ill do the trick. I know a dude up in Colorado Springs, Colorado that has a really good price on rebuilt holleys the best price ive seen. Let me know if your interested ill give you the contact information.
It is not wise to stay with the original carburetor. To really see the advantages of a 4 barrel intake you need a 4 barrel carb. I recommend a Holley 600cfm vacuum secondary. If you can tune you existing Holley you can tune it.
I would be kind of concerned about that intake though. The ports may be larger than the ports on the heads, which would hurt flow. If you get this intake, plan on taking the heads off to do some port matching. Then again I could be full of it and they'll match up great.
I dont think there will be a problem with the ports. The upper-end on the 390's and 352's are identical. But just to make sure measuere and record your ports on your heads and then measure the intake ports on the intake you found. Cant hurt to make sure!
The fella has two of them "he thinks", one that has been cleaned up for $75 and one that hasn't for $50. I don't plan on using the original carb but do plan on getting a 4 barrel from that time period and rebuilding it. I am wondering about the original manifolds tho. Thanks for the watchout on the porting. I will keep an eye on it! With all these changes I still want it to look "old school"
Do not pay that price for the intake! Dont pay anymore then 40$ for a clean one! That guy is a scam and is trying to ripp you off. I wouldnt even attempt to buy one from him. DSC has 4bl intakes for FE for only 50 bucks. www.DSC.com
You also have to figure shipping in there. That intake weighs like 80 lbs! That cant be cheap. I'd just get the $50 one, a bottle of Castrol Super Clean degreaser, and have at it.
You also have to figure shipping in there. That intake weighs like 80 lbs! That cant be cheap. I'd just get the $50 one, a bottle of Castrol Super Clean degreaser, and have at it.[/QUOTE]
Do you mean the "390 GT Intake Manifold"? Would getting one of those and using the stock carb make any sense?
The guy at the junk yard refered to it as a high performance intake. I have not seen it yet! A friend of mine who knows his stuff told me about this guy that makes his living selling mostly Ford stuff (who is regarded as a good guy in the rural community that he lives in),(not a "scammer"), so I got a hold of him. I will not be able to see it till after Monday or so. This weekend I will be at the Rhinebeck Goodguys Nationals drooling over all the sweet high dollar Fords!
As far as "stock", carbs go, if they are rebuilt and the same size as their after market replacements, they should meet my needs. Carburation principals have not changed, they just look prettier!
If that dosen't start controversy I don't know what will!
Do you mean the "390 GT Intake Manifold"? Would getting one of those and using the stock carb make any sense?
Yes, I mean the 390 GT intake manifold. If you mean you would be using the stock 2 barrel carb, dont bother. You wont gain anything. I think the perfect carb for this setup is the Holley 600cfm vacuum secondary. Get #68 primary jets, and a secondary metering block kit to replace the plate. Then, put #72 jets in the secondary metering block. Also, get a power valve block off for the secondary metering block. I think it's included in the kit. Put a 6.5" power valve in the primary metering block and you're good to go!
The reason I recommend getting the secondary metering block is that you cant change your secondary fuel metering with the plate. This could cause you to run lean at high rpms.
Oh yeah, if you haven't already done so, get a set of headers. That'll really wake it up.
I know, I know, I will probably end up going with the headers eventualy but I am still trying to kid myself that I am going to keep it stock. The only way that will probably happen is if I get something else to build quick. My brother-in-law has a 460 that he is putting in a 66 stepside that might fill my needs!?!
Again, you wouldn't gain anything. The biggest restriction on the stock setup is the exhaust log manifolds. They suck. Really. And when I say suck, I mean, um, like the most crappy restrictive worthless POS manifolds that ever were.
So yes, you absolutely need to put headers on. The intake mods would not help at all without it.
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