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HP: At 17 psi, Project 951's first baseline run with the B&B headers, LINK AFM, Kokeln Stage 5 turbo and Lindsey Racing exhaust was pretty lean. The red graph shows the increase in performance when Richards increased the fuel pressure a bit to fatten up the mixture, which we used for our new baseline. SFR Stage 2 header and down pipe combo (blue) showed a gain of 31.2 hp at 6070 rpm without changing boost. These runs were also done with 91-octane pump fuel.