MPH Chart Per RPM
3.55 Ring and Pinion
1.00 4th Gear Trans Ratio (5-spd)
1.00 3rd Gear Trans Ratio (Auto)
RPM
2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500
25.0 42 52 63 73 84 94 105 115 126 136 147 157
25.5 43 53 64 75 86 96 107 118 128 139 150 160
Tire 26.0 44 54 65 76 87 98 109 120 131 142 153 163
Height 26.5 44 56 67 78 89 100 111 122 133 144 156 167
In inches 27.0 45 57 68 79 91 102 113 124 136 147 158 170
  27.5 46 58 69 81 92 104 115 127 138 150 161 173
28.0 47 59 70 82 94 106 117 129 141 153 164 176
28.5 48 60 72 84 96 108 119 131 143 155 167 179
Courtesy Mustang Parts and Tech; www.mustangpartstech.com