Dirty Daytona
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- Joined
- Mar 8, 2019
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Maybe someone can help me with this issue. 2006 27 Daytona with a carbureted big block chevy. Standard 2 wire distributor, mercruiser coil, pretty basic setup. My problem is 1/2 throttle and above the tach goes apeshit and jumps all over. When this is happening the engine is running perfectly and the RPM’s are NOT fluctuating as the tach is showing. This does not happen on the hose in the driveway, only under a load on the water. The tach is an analog Pro comp. Any ideas of what could be going on?