well if its a mere 20 or so lbs some lightweight body panels and what not. and you might be able to kill two birds with one stone and go for some lightweight engine components shed some weight and increase RPMS
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and posibly even flywheel or what have you.
so if the difference is small enough it can be dealt with if it not i can be compensated. and who knows with more power maybe some rear weight wouldnt be bad atl all