Although I don't have solid numbers to back it up I'd say the adjuster was good for about .75 MPH and half a tenth in the quarter on my car. I run 14 currently and haven't played with anything higher than that. A cobra may pick up more that my car.
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00 GT, MAC Offroad H, Steeda Pulleys, Steeda Timing Adjuster, FMS 4.10’s, Flows w/turndowns, UPR shifter, UPR subframes, UPR LCA’s, Air Filter, Lakewood 70/30 & 50/50, Weld Pro Stars, Nitto DR’s, Best ET on DR's 13.09@103.92 (1.81 60ft), Best on ET Drags 12.99@104.60 (1.67 60ft) 244.6 RWHP
M/M 100
88 LX coupe X-FHP, 12pt Cage, UPR K-member, 31 spline rear, full spool…
85 Thunderbird Stock
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