for people in nsw as far as i know these are still right cars up to 1100kg normally aspirated force fed

in mililitres original mass x 3.0 in mililtres x 2.5 for cars over 1100kgs normally aspirated force fed in mililitres weight x 4.82 in mililitres x 4.0 in cubic inches x 0.294 in cubic inches x 0.244 it is easy to do EG. a ke70s weight is 900kgs and you want to know the biggest normally aspirated motor you can use just x the weight of the car 900x3.0=2700ml 2.7 litres for force fed 900x2.5=2250ml 2.2litres an engineer should let you round up to the higher 2.3litres if he feels like it so i hope this helps anyone in nsw thank you....

i wrote this as a list but when i uploaded it it turned out like that so sorry if any one can tell me what i am doing wrong thanks....