TPI Runner Question

[timsiford at hushmail.com]

>Wouldn't deletion of your coldstart valve avoid all that drilling?

Nope.  Cold Start air if fed into the underneath of the plenum via a special 
pasageway.  This pasageway feeds the driver's side 'special' runner tube. 
 If the 'special' runner tube is not present then the IAC air NEVER gets 
to the lower manifold.  He needs a way to vent the IAC air into the air 
stream.  In fact, I ran into a very similar problem a few weeks ago when 
I helped someone install new runners on their '87 Corvette.  He purchased 
Hi-Flo runners that a guy had used on a '91 vette.  Well, the guy with the 
'91 vette had blocked off this tube extra tube on the driver's side (and 
rightfully so).  The guy with the '87 vette installed these runners WITHOUT 
unblocking the IAC tube.  Can you say hard starts and really rought idle?? 
 We unblocked this tube and now all is AOK.

Tim