Will adjusting fuel pressure change anything with a stock chip?

WSLN 6

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May 29, 2001
I just fixed a header leak, and want to learn in the blm's with the stock chip before I put the Thrasher 100 back in.
If I have the stock chip in, do I have to reset the ecm every time I make a fuel pressure change?
I just want to get a good baseline for blm's so the Thrasher has something to work with.
 
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