TPI Runner Question

[WEG1192 at aol.com]

Tim,

I assumed everyone knew about the little holes inside each lower manifold 
runner as well. My understanding is that the idle air is brought into the 
lower manifold at the cold start injector to "pick up" the cold start 
injector spray and deliver it to all the cylinders thru these little holes. 
Just think of how much simpler the casting would have been if the cold start 
injector had never been used to begin with. It appears that without this 
tube, I will have to drill holes in my upper plenum for idle air to get into 
the engine without the small tube. Anyone tried this with success?  JW
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