Does anyone know how much hp can be tweeked from the 4000q's 5cyl engine? Maybe I'll purchase a 4000q instead of a 5000tq. To anyone who responds, please do not limit modifications on the basis of money. I'll pay (almost) anything for more hp! Thank you. Andrew Shea anshea@hawk.anselm.edu 87 4000cs 120,000 miles 66 Mustang Convert 56,000 miles