well first of all im new the site but not hondas. Ive got a 97 ex 5spd and am looking at doing a b18b1 obd1 swap i know i will have to change the distributor, injector and alternator plugs and possilbly extend some wires. and also i already have the obd2-obd1 conversion harness. But anyway the guy im looking at getting the swap from said i would have to use an obd2 intake manifold because the vacum lines arent compatible and ive done alot of searching and cant find anything that says you have to change the intake manifold is he right or will the obd1 work?

 

You will probably get better answers if you post in the engine section