P T C is the only way to go kenny ford stands behind his products 100% how many does that. So if u need a converter go to chis and dusty they will get u what u need for ur combo cause they are some of the best with these cars and how they work I will be putting my new engine and converter in a week or to from chris If its not enough or u need more they all will make it right. Good luck one more thing I seen some 4 second cars 3 weeks ago with p t c converters also but that probably don't mean much to some people but lots of people trusting them