so I converted to the 12 tooth trigger wheel. I went to carb route but still using the ems for ignition part. my car will free rev to 7000 but under load/boost it will only go to 5800. my vr sensor is not shielded, so maybe that is the prob. or I was thinking the gap on the wheel is to far. plugs are gapped to .020 and running lq9 coils. any suggestions.