1.6 pinto dragged a 1200KGs(?) Sierra around quite respectably so if you put that same motor into a 500 KGs car its going to be interesting/entertaining
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Get your IVA with that motor and if you feel you need more grunt you can either tune that unit or go for an alternative, 2.0 litre Pinto, 2.0 litre twin cam, 1.6,1.8 or 2.0 Zetec or even go really mental and chuck a V motor in
!
D.