Ok so I have this 92 integra that i have built up started off with a remanufactured B18A1 short block pulled the stock pistons and replace with wiseco turbo 82 mm pistions and had full floating rods put on, skunk2 intake manifold,golden eagle ls vtec conversion kit (didn't use their head gasket though) dc headers,94 gsr head ported and polished new oil pump,oil pickup tube and gasket,new oil pan gasket 80% of bolts and small stuff i bought from the dealership put it all together started it up ran great for a little bit then the dreaded oil pressure light came on i quickly turned it off hooked up a mechanical gauge started it up again it read 0psi on the oil gauge for the past 4 months i have been searching what the problem might be and not 1 person knew what it could be and the sad thing is they do these cars all day long. so i have tooken off the oil pump 3 times the head twice and couldn't figure it out so today i got up on google and found a service manual for free on integras 96-01 i figured it will be about the same considering 90-01 the blocks are almost the same so i found out about this head oil control orifice and my reman block didn't have one in but i don't know if there is a port for it i know i checked all the gallies to make sure they were clear but i dunno if the port on this block will be open or not if it's not then i just wasted my time but if it is i will never forget this and Haynes repair manuals can KMA for not including it in their book i will let you know if this fixed the problem by this friday which is my day off.

P.S. i will also check the oil orifice in the head to lol