mga papi need ko advice sa mga honda civic vtec users. I have my honda civic 97 model, stock ph16 engine. i want to get some opinions regarding about swapping my engine's cylinder head to d15b's cylinder head . do i really get an upgrade in HP? what i hear from people is that d15b engines have 20 cam lobes which really can be fast and actually cannot be left out with a breeze by B16A engines which usually happens with ph16 engines. yun po yung mga naririnig ko. i need your opinions guys regarding this matter. should i swap my cylinder head and magpalit ako to d15b? does it really give you more power than the usual ph16 engines? and what is the real horsepower of ph16a and d15b engines respectively? ayaw ko naman mag-upgrade to b16a engine dahil less fuel economy and ayaw ko palitan ng buo yung makina. please answer my queries guys! thanks