I have a friend who recently acquired a 1600 race car and rebuilt the motor. He is looking for 3" velocity stacks for the SU carbs. Any know a source. Gary Lasater - Parker CO founding member <http://www.wycroc.org/> www.WyCROC.org 1963 SPL310-00161C (Single Carb) 1963 SPL310-00289B (Single Carb) 1964 SPL310-01289 1968 SRL311-11977