Originally Posted by xviper,Dec 22 2005, 06:35 PM

Your situation is very similar to another board member here who is a friend of mine. He has an AP1 with Comptech and aftercooler but with the original pulley. He was boosting about 5.9 psi. I went with him to the Comptech factory N.E. of Sacramento to get the smaller pulley put on and then dynoed. The pulley added 1 psi and they had to turn the fuel pressure regulator 2 full turns to make the A/F safe. All this gave him another 20 whp.

Originally Posted by r_duff,Dec 27 2005, 07:48 PM

good info... 'by smaller pulley' you mean the acutal comptech AP2 pulley right?