@Elien
thanks u expalained it clearly iridiums do work in small cars still many mehran owners are confused and they think one thing "bus is gari k sath kuch nahi ho sakta" that was my attitude back then but thanks to Pw i learned many things and i have a habbit of experimenting i expremented with 4Tips only plugs didn't made a diff but wires make hell diff
and i searched peshawar for simota carby intake and checked one mehran with simota intake
i hate it coz its too big and costs more insted i will install on test bases Carbon intake with custom pipe and my car had After market CNG so it will be easy job
but im still happy with VK20's as my arogent friend who owns a corolla X was scared to peing his pants when i accelerated my mehroo