all group c car ran by the same rules
pf 1600 cc motor maximum compression 10.5 to 1
crank rods and fly wheel free
gearbox must be as hommoligated
diff- detriot lockers allowed but ratio as homoligeted
brakes must be the origal operation(if discs must be disc's if drum's must be drum's) but type of caliper and disc free but no bigger than 10%larger in diameter than stock.
suspenson- shockers and springs free suspension mounts must be unmodified but extra bar can be added(the hdt commodores had rose jointed rods next to the stock arms) watts linkage can be added in place of panhard rod.
bernie mclure's td
muzz/za'slong lost love cdt p50
the former peter boston pf60
hdt built pf60e twincam
and last but not least my cdt pf60