The biggest problem is the car it is in is much heavier than the Honda counterparts. The D16A1 head really likes some good port work in the bowl area and I like to use AEM adjustable gears to tighten the lobe separation up on the cams (advancing the intake about 2-3 degrees will make the engine think it has more compression than it does). Also if you have an 86-87 they have lower compression pistons than the 88-89 models.