Quote:
Originally Posted by Skwerl
I did get a 1556 with ECUTEK tune. I purchased it from Summit, but upon calling Edelbrock, I found it has a 3 bolt bypass valve. Pinching the line solved the issue.
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When you say pinching the line solved the issue what do you mean? If you keep that closed at all times, you'll never have boost. That line on the back closes the port in the manifold allowing air to go through the SC.