Got an 88 2300 that just got a heart transplant (cam) with 1.89 and 1.59 valves. Car runs great - just put Y-ed dual exhaust 2.25" (mainly for looks

). Need suggestions for airflow issues. Still have stock TB and stuff. This is a speed sensor vehicle not MAF. Cam is "mildly radical' as large as you can go with emmissions -( 401 - 410 lift, 112 center, don't remember duration).
Suggestions and ideas other than carburetion to improve airflow?