A d16a1 is a brown top, (aka bastard ZC) I believe your engine is rated at 116 hp or something like that. Its not really the DOHC ZC that is more popular. It would say ZC on the block (JDM) if it was or, D16A8 or D16A9 from Europe (A8 is FI w/ a cat | A9 carbed and w/o cat)


Start here ----> The ZC Resource