NOS on 88-91 Civic DX
I would not recommend it on that engine. It is a weak engine with weak fuel delivery. But if you do decide to do it I would say on a 50 shot you would not need to do anything to it.
We put a 65 shot on my buddies 91 Civic HB DX. It has the ZEX kit and it hasn't had any problems. The only thing done to his car is the ZEX kit and retarded his timing 2 degrees.
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