Hi Archon; U got my point. few things i ve to addup to your comment, enginne specification is correct as u siad but there is a inbuilt RPM indicator in my car. Radline start from 6500 to 8000 and shift gears when get 6000rpm further i checked accuracy of speedometer. Two years back i did few modification like carb jet change, dalco adjuestments, sparking plugs and exhaust but kept standed wheel size 13'' to generate better torque. Ave fuel consuption is 8kml. i obtained guidence from auto engineer before do the modification.
now i seek advice for horsepower enhancement to existing machine?????