I have a B18C1 swap in my 93 Hatchback....the motor is pretty much all stock cept a cai and also the exhaust is dislodged between the header and cat. Well i need help diagnosin(sp?) what my problem is... While going up to speed and keeping the speed constant on the freeway (65-80mph) the car seems to bog/struggle. But on the city streets with just normal driving the car seems to run fine, and also the car would acclerate fine with no struggle at all. It only struggles when keepin a constant speed around 65-80mph... Does anyone have a clue on what i should check out or know the problem so i can fix it? Thanks in advanced, i hope i find the problem soon and get it fixed soon.

 

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