I am still pondering the Supercharger issue. I posted on another Mustang site and this was my question and the response I got from a fellow Mustanger. I would be interested in your thaughts. Thanks in advance for your help guys as always.

Question:
"I was thinking I may go with a carb cover,where the bonnet sits right on top of the carb,instead of the old fashion box enclosure.I was told the enclosure makes simplecarb adjustments a pain."

Answer:
You need to do some research before you do a "blow-thru" setup. www.turbomustangs.com . You can find a lot of good information on this site, and meet a lot of knowledgeable people.
With the carb hat (bonnet) you have to have a heck of a carb, with a lot of modifications. For example, you have to have seals installed on the throttle shafts. There is a website www.csucarbs.com that most of the guys on TurboMustangs get their blowthru carbs from. They start at $750. I agree it does suck to have to take all of the bolts out of the top cover of the enclosure to access the carb, but once you get it "right" you dont really have to mess with it. One thing about the enclosure that I like is that I can take any holley and in about 30 mins I can have it ready to drop down in the enclosure.
Also with a bonnet you may have to use a cowl hood.

Standard Set Up with Enclosure:


What I want to go with: (Single Only/NotTwin Set Up)

 

pics are little small but someone just put a paxton on their car

 

Bigger Pictures

 

hot! is this what superchargers look like on all carbed motors? i have to say ive never really seen a supercharger off of a fuel injected...

 

No, most of them sit right on top of the manifold with the carb on top.

 

what do the Paxton guys recommend?

I agree the carb should be mostly set and forget. As far as appearance...I'd be happy with either setup!

 

Here is what I think of when a carbed paxton comes to mind.

 

I know, but I just like the old school look and the carb bonnet just makes it look more custom. I am having the guys at Cobra Automotive do the work and they basically will do whatever I want $$$$$$ of course. Actually when I was there the last time, the owner was going from the enclosure to the carb bonnet. It looked like he was going to keep the same stock carb that came on the car. I believe the carb size was a 715 cfm. Although this was also an original 1965 GT350.
I just don't see having to do anything special to the carb or having to get a new carb, not for $750 bucks.

 

This is what I picture when talking about carbed Paxtons. I used a Holley 650 double pumper with bigger jets, and phenolic floats. It was a pain to tune the carb, you have to unscrew the carb box(4 screws) and undo a hose clamp. The box is made of cast aluminum and the scews are soft aluminum too. Every time I took it apart the threads were a little more owrn down. Over time it was more noticeable. Another item I didn't like was the throttle link that transitioned your throttle cable/rod through the box to the carb linkage. It was a shaft that went through the housing and had "D" shaped ends to allow the arms to ride on. Over time the "D" became rounded off and the linkage became loose. Also, with the carb in a box, its hard to tune the carb while the engine is running. If you open the box while the engine is running, you get zero boost. A few good points, the mechanical fuel pump had a boost index buit in that increased fuel:boost pressure 1:1. With the carb in a box it was pressurized internally and externally. For example, you need 6lbs of fuel pressure, you get 7 lbs of boost, so the 1:1 indexer adds 7lbs to your existing 6lbs of fuel pressure. Technically you have 13lbs running through the car but 7lbs are to equalize the boost pressure. If you didn't do this, your boost would push the fuel back through the fuel lines back to the pump. This needs to be addressed when using just a carb "hat", because boost is being forced through the top of the carb. Although, with a hat, you can do some tuning under boost while the engine is running.


My current setup, I am going to run the Extreme Velocity carb hat and a Speed Demon I built for blow-through. The next best thing, and in the works, is the new BOSS EFI kit. Its an EFI unit that is dimensionally the same shape and size as a Holley 4150 carb, and it automatically tunes, even for boost.

 

I like your "over-the carb" set up.

Here's my Paxton - still in process. Hopefully, the car will be done in the next 6 weeks...