I think I will replace my 1.9:1 servos with the 4.25:1 servo but it has been suggested to me that I really only need to replace the front one. The front brakes perform most of the braking and a system of 4.25 on the front an 1.9 on the rear is what the Aston Martins of the era had.
Any thoughts on 4.25:1 on front plus 1.9:1 on the back being adequate versus 4.25:1 all round? The cost of a second 4.25 unit is not a factor really but the installation pain I anticipate is!
David
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