You will have to use both feet on the pedal to stop the car, I would leave it in there. You can, I suppose, fit a modified (smaller bore) MC for racing, but otherwise you will have to priovide MUCH higher pedal pressure for equivalent braking.

Safety is much more important in racing that on the street -- you are going faster, working the car harder, and likely have much less effective manouvering room! Don't wait until you break your neck to think about it.

Peter

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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!