hahaha..yup..its not that powerfull..but im sure..engine sound like wanna blow..hahaha
its not downhill...i can rev to 7k at 5th gear on normal road..
but not easy..i dont know my top speed coz my speed meter not working..
any suggestion?..are this problem may because of my timing or carb setting?
maybe your clutch was working better now, cause there's no clutch slip (^.^)~ just joking. mostly that's due to power lose in engine over time, engine lubrication conditions, week spark-plug, cloaked carburetor or even engine running too lean/rich will cause power lost~ should send your car to a proper service centre to get a through check-ups~