i swapped a 92 b18 in my 90 si hatch, and my car reved great. then i had my intake manifold port and polished and put it back on. i know everything is where its suppost to be. my car only revs up to like 2 grand and sounds like it redlines. just wont rev up, im running my 90 si map sensor still you think i should install my 92 map or what should i do? on top of this i lost my rpms at the same time. no rpms at all on dash. checked all fuses and changed my 90 distributor and still does it.