Hey Dimlight. If you are droping that V 6 engine in there,you need the power ,those 245-50-14 (and also 265-50-14 available) are made by T/A BF goodrich,(I think t/a is made by BF,or it could be Goodyear,I am kind of confused,but positive it is T/A)... anyways,those tires on a 14X10,9 or 8 will work,not just look business ,but mean it,and are streetable,racing tires can not handle daily driving,would melt,this ones work. With some wheel/fender well work,you can drop the car in those tires. I used to have a VW bus(68) with a porsche 6 cyl engine,and I put those tires,245/50/14 on 14X8 wheels,and it flew off,unfortunately as I was to add more rubber to the rear,265/50/14 on 14X10,my van got stolen,my fault,I never installed any alarms nor gas cut of valve nor any security devices. I do not want to think about that story,it still makes me mad!!!!
On the front of the 1200 I do not think the 14's would fit,but 215-50-13 (widest 13 available now for street use) on 13X8 would work fine and hold ground,also keeping the car low. The rear 245-50-14 's will work as train tracks.
Have fun!