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Re: 72 GMC Short Step Build
are you guys tuning with ebl flash or similar? i assume your using a speed density 90-92 factory ecu. i'm planning on building a new family truckster in the near future, and i was going to go ls, but after seeing the first tpi, i got nostalgic pains for a long runner sbc!
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1999 GMC Suburban K2500 SLT, 454/4L80E
1991 Z/28, 6.0L/T56
1949 GMC 250, S10 Frame, 6.0L/4L80E
Instagram @aceshighspeedshop
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