jamesrguk wrote:
- Primary pressure was tested and set to the correct specs
Correct for what? The camshafts and the compression are different on the DeLorean than the engine they were designed for.
The bottom line is that you can tune it in while at idle, but it runs lean in the rev range - therefore increase primary pressure to steepen the AFR curve.
UNLESS the problem is ignition. What coil are you running? There's been quite a bit of discussion on DMCTalk regarding the use of "performance" coils and it has been proven that the ignition amplifier is designed for the stock coil, via the resistors and anything else can cause trouble.
Are there any vacuum lines that could be wrong and preventing the correct enrichment?
You should run your stock 066 CPR and plumb it in to enrich under throttle deflection all the time. The 038 (Volvo) CPR does very little on the enrichment side and no working CPR action would cause what you see.