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erm......everytime when i read these car modification magazine ...
these car sure mod HI-CAM ....
HI-CAM for racing use !! erm......tis 1 i know ...
but~~

if i install a hi-cam , what else i need to mod together wif hi-cam to make it balance till perfect leh ??
hi-speed pulley ? ECU setting ? dyno test & setting ?

what kinds engine r suitable to mod HI-cam ? All ?

any negatif effect ? any positif effect ?

hi-cam can higer the engine rev ?normally can higher how many RPM ?

erm.......what...