Over the past few months I've been doing a turbo build on my car. I started with the On3performance kit and added a GT500 pump with 80lb injectors. There have been a few minor other mods. We've been tuning the car with HP Tuners and were running into the problem that we were pegging out the stock maf sensor. I recently acquired a maf sensor from VMP Tuning that they claim can't be pegged is suppose to be good for 800hp in a 3 inch pipe. Only problem is we didn't have maf transfer tables for tuning. The car ran rough the first time out and pretty sure we fouled out the plugs. I'm looking to see if anyone has any tuning experience here and can help. Also looking to see what people suggest for a set of colder plugs? Thanks for any help.