i just change my original cam to piper cam with 288 degree.after finish transplant the cam,i think it's not well tuned bcoz my car is less power then original one n the sound went smoother during high rpm.can someone help me plZ??

with that kind of overlap, u can expect the power to come from between 4500rpm to 7500rpm. u might lose some power on the low end, but gain gila on the higher end of the rev range. what's the lift like? the 288 is the duration only.

yeah u're rite i can fell my car accelerate during high rpm.anyway i didnt know this is half raise,full raise or whatever.this is the cam specs

INLET EXHAUST
total duration-288 -288
max camshaft-6.30mm -6.25mm
max valve lift-10.10mm -9.98mm
valve opens-38 BTDC -68 BBDC
valve closes-70 ABDC -40 ATDC


i dun understand what these means.anyway tx for helping!

try using 272 degree cams for the exhaust. that might help