Finally we deduced that we have to convert the auto tranny to a manual one before doin' any modifications on my engine to get the max power of the engine then i can change the cam gears , system exhaust,headers.
Thank you guys for your kind support.
if there is anyone have any other new information to improve the HP of the b16a feel free to help me :D
thanks alllllllllllllllllllllllllllllllllllllllllllllllll llllll
best regardsssss :D