here u go


mph = (rpm x tire diameter) / (gear ratio x 336)



i got this from this site

http://www.prestage.com/community/Car+Math/Car+Math+Formulas/default.aspx

98 svt sil/blu 3.0 oval heads full P&P, msds headers,bat kit,2,1/2exhaust 30 inch glasspack and 2 spintech mufflers 14.78@94mph with my mechanical arm i can shift gears in less then a twentieth of a second for sale $7000