I don't know if I did this right or not, but here's a link to a short clip
of the 468 in my Chevelle running.
 
http://s263.photobucket.com/albums/ii131/hlumpp/?action=view
<http://s263.photobucket.com/albums/ii131/hlumpp/?action=view&current=MOV092
84.flv> &current=MOV09284.flv
 
On the engine dyno it made 619 hp and 570 lb/ft.  Not too bad for a shade
tree mechanic!  : )
 
When you watch it, listen for the "whistle" sound.  I checked every place
there could be a possible vacuum leak and found none.  It sounds like it's
coming from the air entering the carb.  Under the carb is a Wilson Manifold
tapered 4-hole spacer; I wonder if that could be the cause?
 
Herb

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