[Accelo]

A friend of my had issues with his. It was a hybrid system with an OEM distributor. Definitely more of a changeling to tune. System ran really well but wouldn't idle. IAC was going all over the map. After two different tunes I identified the issue, it was the vacuum can on the distributor. The motor had a camshaft in it and it lowered the vacuum enough the canister was changing the timing at idle. To be fair this would have been an issue with a carburetor or injection. For that reason I would recommend the system with the digital distributor. Just easier to tune by experts. Just not a lot of people with the skills to do the Hybrid systems.
Cheers