I boys.I need an advice for my Escort mk2 built for italian rally. My car it's 1.6 x-flow whit about 140 bhp. Gearbox it's type 2 whith Quaife gear 1st 2.500 2nd 1.640 3rd 1.220 and 4th 1.000. Rear axle it's Capri english axle 4,4:1. My indecision is: fit 4,9:1 or 5,1:1 ratio ????? Now I run whit 175/60/13 or 185/60/13. Any advice??????
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