Setting timing with surging idle
Swapped a d16y8 into my 89 hatch, but I'm unable to properly set the timing because of surging idle.... Anybody know a good way around this? I set the timing by ear/feel and the car isn't bogging or anything, but I know it's not dead on. Already went through all the steps to eliminate the bouncing idle, brand new iacv, no vacuum leaks, TPS is set properly, air bubbles have been bled from the cooling system. The company that made my chipped ECU says I just need to get it tuned (currently running obd1 d16z6 basemap on the y8 with a 63mm TB and portmatched intake manifold).
Soooo anybody know any tricks for correctly setting the timing until I can afford to get it tuned?