Zerotohundred

I'm noobie in mod car scene...

So I need an advice from all..all...all....sifu in here....

I'm Satria GTi standard piang.... n I'm thinking about to change camshaft. Whats set is better???

272/272 o 270/260??? did I need to change spring too???

And please tell me bout a/cond n idle condition when I change the cam...

Really...really..really need an advice from all..all...all....sifu in here....

Thx in advance...