Greetings all,
I'm looking for a little feedback from the hotrod crowd.
I saw a recent article in carcraft magazine critiquing a carburetor spacer built by Wilson manifolds of Lauderdale, FL. The spacer was about one inch thick, and sat between the carburetor and the manifold. The idea was that the additional space allowed the fuel/air mixture to transition more smoothly into the intake port. The claimed increase was eleven horsepower (on an engine already producing 466).
The question is, would such a spacer improve horsepower in a single like ours?
JB

  If anything it looks like it would give you at the most 1/2 of a horsepower more,thats if it worked. they normally tell you the most it will do.

Gary On A Savage wrote on 08/27/09 at 15:53:38:


Do you know the answer?  Simply telling someone to research screams "I've got a secret" - and generally comes off poorly.  

Do you know?

voldigicam wrote on 08/27/09 at 17:24:51:

On this forum it means it was discussed, the info is really good, but I don't have the time/inclination to lead you by the hand to where it is.
Search diamond jim turbulator (I think)

 A longer intake spacer would normally give more low in torque .

For all out power, intakes should be as straight a shot into the intake port as possible, which on this engine would be difficult with the space limitations but  spacer tubes could be put in there if the air box is removed.  
With a velocity stack + carb + tube spacer+flange you could have a pretty good length of intake track.  To take advantage of the total length you would need to take care that the ID of the total length is the same all the way through, or decreases slightly from end to end, AND THAT IT IS SMOOTH INSIDE.  Abrupt changes in the ID leaves shoulders in there that will interfere with air flow.  
No one makes parts for this engine so you have to play mix and match.  I get parts from auto parts stores, Lowes plumbing dept, local hardware store, leftover satelite dish mounting tubes ...whatever will fit.
It is fun to play with.