installed the vacuum pump and electric water pump and headed to the track. ran a best of 7.15 (best 7.13)in the texas heat. removed the belt and no diffence. did pick up .38 MPH over my best time though so theres a little here. im sure theres some 6.90s in the car but its gona take some good air and a few more upgrades. next on the list is a different intake. my computer is down now but will make and effort to keep my progress posted. Dave

Dave,

Thanks for posting the results. Keep plugging away. I think a 6.9x is in the bag with some good cool crisp air.

Are you keeping track of weather conditions for comparison? What was the DA for those runs?

What pump and how much vacuum are you pulling? What ratio are you driving the pump? Are you running a bleedoff valve?