My car under light or partial throttle sometimes surges/bogs randomly, but under WOT it moves out just fine. Here's the background: I own a 1992 Civic CX, *D15B8 Block with 4 valve pistons* I Did a 16 valve swap on it *D15B7 head, D15B7 intake manifold, D15B7 ECU* I burned up my valve seals (Compression leak) and went all out for mini-me and got my hands on a D16Y8, which I had rebuilt, 3 angle valve job *2 replaced valves* and re-surfaced etc* When its all said and done I'm running my P05 *Origional ECU* Chipped by Phearable.net for Vtec, and the setup I have. I'm using the D15B7 Throttle Body/map/tps on a D16Y8 Manual Intake manifold with my IACV Valve off the D15B7 intake manifold. My cam timing is correct *1/2 tooth issue due to D16Y8 head on D15 Block, I purchased a adj. cam gear to correct it, which I did, it is set to 5* advanced (An additional .25* more than normal due to the re-surface/mill the head had done) I BELIEVE my ignition timing is correct, but suspect it may still be part of the problem. What else should I be looking for that causes surging/bogging issues under light throttle, another problem it is having is that it takes several cranks to start, and once started idles a little rough *Slight mis-fire* until it has started to warm up a bit, after which it is fine. My mods are as follows: Intake Header 'high flow' cat N1 style cat-back exhaust Megan Racing UDP AEM True-Time cam gear Accel HEI Super coil *OEM NGK plugs, wires* new cap and rotor. phearable.net ECU. Ideas?