HKS 256 cams on stock valvetrain?

[buddha]

im looking into getting a set of 256 8.5 mm lift hks cams and was wondering if i should upgrade the valvetrain or leaving it stock should be fine? im planning on building the engine completly in about a year, but would just want to throw these in for now.

rest of the engine is basically stock, sr t25, mines ecu, fmic.. the basic crap.

thanks.

[Kouks]

stock valvetrain would be fine, but its always better to upgrade!