Well the problem has started up a couple days after I got the car back.

Re-tested both intakes for a second time and I was able to replicate the problem. It runs fine when I disconnect the battery for 20 mins and go for a drive.

Drove for 30 mins first in the city then on the highway. Once I got off the highway it instantly crapped out. Im wondering if this is due to a faulty sprintbooster, I remember some people mentioned when they got off the highway they would experince loss of power.

Also I waited a couple hours, started up the car and its still having problems.

If it runs fine after I disconnect the battery then it can't be IC issue related could it?