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Discussion Starter #1
now i havent seen an LS1 thottle body, but the thottle body on the trucks have a little half moon thing when the valve is at 100% that restricts the flow quite a bit.

I drilled the rivets out and removed this piece and then filled in the holes where the rivets would be.

and i can feel a decent power increase at 100% throttle,

i dunno if the ls1 has this little piece but i bet if you remove it you can get a good increase in power


just a thought
 

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May I quote you on that?
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I recall seeing an insert for the stock TB. It changes the profile and supposedly improves the airflow characteristics. Anyone remember who makes it?
 
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