Hersch, Bernie,
If the car on the 'other forum' is the one I am thinking of I had a bit of involvement in help solve the 'problem'. At the end of the day I believe the particular problem on that car was a front rim offset issue which had led to some mods/adjustments on the front suspension that did not allow camber'castor to be set at optimum along with a less than ideal scrub radius. Since the RF40 ( along with most replicas ) follows the original in basic layout of wishbones etc, as long as front wheels/rims are kept to a reasonable offset and width to enable a suitable scrub radius few problems should arise in the handling dept, if you wish to fit very wide modern rubber at the front for racing , then a rethink of pickup points etc is in order to gain maximum benefit.
Jac Mac
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