my friends got a 98 s-10 pickup with a 4.3. he's got some things done to it, but in a month he is getting a $34,000 settlement, so hes gonna supercharge his truck for a start, he wants to go with a vortech or procharger system, if theres anyone out there that has advice on which one is best for his application, do to your past experience perhaps, write me back. thanks.