Dear I have a Indus Rolla 96 with 7AFE, with intake, light weight fly wheel, big Injectors, Iridium Plugs, I am getting 80KM with AC on CNG full tank, and approx. 9-10KM local on Petrol. but on long it gives awesome average on CNG, it gives 235 KM on 55KG cylinder. but didn't checked on Petrol but it also gives good average. so what will be the cost of your kit and what will be fuel average after installing it.