suzuki fx.. carburator is of 86 charade. high intake, exhaust manifold and pipiing also modified. original cdi installed. one thing we added is something like amzng thng... its some sort of electronic thng. i it has two pipes. one is going in carburatr, on is going to intake manifold. it needs minium 3000rpm. whn i switch it on the car just gves boost.... but even though whn i turn it on in 3rd or 4th gear it doesnt gves tht mch boost. its like addng .25 ltr wtr in 5ltr.