how many times have I heard that line: Daday ki nishanee. If you really cared about the CAR(dadda comes later), pls realise that proper professional car mods are just not possible in this country. We lack the skill, spares, and commitment to detail to achieve something that is worthwhile in terms of performance, reliability, and cost. Stick to the original engine. Impalas may not be rare in the USA, but they sure are here! And please, V8s and fuel economy are two words that cannot be uttered in the same sentence. You can either have one or the other. Why do we go buy expensive cars only to ruin them with cheap oil and petrol filters? That sadly is our mentality.