Stock Motor 7.43

[Nojug]

I ran my dads car last Friday and it went a 7.43 to the eighth w/ a 1.57. I was hoping to see a 11.50 pass or possibly a high 11.40 but at the 1,000 ft. the boost droped 4psi and the o2's went from 800 to 720's and I lifted, could it be a loose vaccum line?BTW I did not show any knock retard.

 

[zam70]

YIKES - nice run....
boost dropped....how are you reading knock? Is the chip controlling the boost or are you useing something else?

 

[Nojug]

The car has a knock gauge and direct scan boost is controlled manually.