Thanks, I'm already a member at firstgencivics. I'm posting this question here because I'm swapping a D16A1 integra engine into the civic, hence the need for higher pressure (PGMFI). What i was asking was if i can use the stock pressure regulator out of the integra in the CVCC if it's running an inline pump. I assumed that it would work, but i thought i would post the question in case anyone has had problems with their stock fuel pressure regulator after installing an aftermarket pump. So, unless anyone says boo, I'm gonna try and run the stock reg. If it doesn't work, I guess I'll get an aftermarket adjustable fuel pressure regulator. Thoughts?