As always, thanks for the comments Ed.  The intake idea that I stole <g> uses 1.75" tubes.  This is certainly not larger than the combination of Tracy's tubes, but that could be a problem in itself, particularly because it's so long.    

 

I've been looking at U-bend aluminum tubing at Burns Stainless, and trying to figure the best way to make this into a usable intake.  Do you have a picture or drawing of the inside of your molded chamber? 

 

Also, can you (or anyone else) refresh my memory on what's supposed to be the best simple, single barrel TB?  I'm thinking it was a mustang, or Corvette part, and I even think there was someone trying to sell one recently on the list.  If you still have it, let me know.  I would want something light, simple, and with no injectors built in.  Basically, just a butterfly on a flange.  

 

Thanks,

Rusty (intake #3 scheming has begun)  

 

Rusty, I use a 65mm Mustang TB.  I used the LS1 "Corvette" but I found it to really be a bit too large at 75MM.  I think Bruce recommends a Supra TB.  But, they are all fairly similar.  Just get the cheapest one that is around 65mm and doesn't have a lot of junk to take off.  They are all much lighter than the Mazda 3 port TB.

 

Ed Anderson