Iron Tank said:You think it won't run well with a vpc?
I don't think so. A custom made chip might help some but, a VPC is using the manifold pressure the stock cams create to define the AFM signal it sends to the ECU. A "MAP ECU" might fare a bit better, since you can change the signal it sends pretty much where you want to, it can compensate for VE changes a bit better, at least on the fuel side. The timing for the vacuum side of the map is going to be all screwed up though, not much you could do about that with a piggyback.