Your One Stop Shop for LS Performance. Camshafts, Valve Springs, and More! LS1 LS2 LS3 LS7 LS9 LSA and More! BTR Cams and BTR Valve Springs Come in FIRST! Gen V LT Performance Superstore Brian Tooley has worked in the performance industry full time for over 20 years. He started his own business, Total Engine Airflow, in 1992 using a Flowdata flowbench. He worked at Holley Performance products from 1993-1995 where he helped develop the SysteMax head, intake and camshaft packages. He went back to work for himself from 1996-2004 where he built Total Engine Airflow into one of the most successful CNC cylinder head porting shops in the country. At the end of 2004 he sold his business to Summit Racing Equipment where he worked with Trickflow Specialties developing CNC programs for existing heads, as well as developing all new cylinder heads. He left Summit Racing/TFS during 2010 to move closer to home and family. After seeing a need for quality spring kits at affordable prices he decided to introduce his own line of spring kits.