Just drive easy with the seafoam because when I added to my vmp stang, it didn't like it. Seemed like I was driving on crap gas until I burned through that tank of gas. The idle was ruff and it seemed down on power.
I ran 123mm jlt intake with my VMP tune and no issues. They should be able to figure it out with a log. The p300 is a misfire code and sound like you need a crank relearn done or the oring upgrade on cam position sensor.
Do you have an sct4?
Im selling my VMP kit that has around 18K miles. It is a stage 2 kit with 2.3L SC, afco 3 core dual fan HE, 123mm JLT intake, 47lb injectors and 82mm pulley. Kit is complete with all hoses, bolts and harnesses. Only item you will need is a JLT catch can or a similar one. If interested, I can...
Up for grabs is my Ford racing 3 gauge pod with an aeroforce, cobalt boost and cobalt oil pressure gauges. Gauges comes with all wiring, boost line and sending unit to hook them up for a clean install.
$375 shipped
My gen 1 vmp stage 2 kit will be going up for sale one I demod next weekend. Not sure on price yet since I might offer a package deal including my boss 3 gauge pod with gauges and my sct 3.
I am happy with mine but I didn't get it paint matched since it wasn't offered at the time. Lining it up is a bitch though since you have to take your time to get the upper and lower trunks body lines lined up. I can post up a pic, I just need to resize it.
The easiest install is the PD SC and this is my second stang with the VMP kit and no issues with either one. A turbo would be nice, but the install is more in-depth and you'll have more maintenance with a turbo.