buy a d15b2 from any 88-91 dx/lx civic or a d15b7 from 92-95 civic dx/lx cars or del sol S 93-95.
re-use your current intake amnifold and ecu.
you will run slightly lean up top due to the b2/b7 cams being higher performance.
You can always swap your B1 camshaft into the B2/B7 head, set your valve lash after installation, and be back to factory power.
Do not leave the B2/B7 camshaft in place. It will add 20hp but it will run very lean up top. The B1 electronics are more focused on low end torque and gas mielage.
re-use your current intake amnifold and ecu.
you will run slightly lean up top due to the b2/b7 cams being higher performance.
You can always swap your B1 camshaft into the B2/B7 head, set your valve lash after installation, and be back to factory power.
Do not leave the B2/B7 camshaft in place. It will add 20hp but it will run very lean up top. The B1 electronics are more focused on low end torque and gas mielage.