Supercharged Ls v BMW 320 something

So the other night i was driving home from school, and i was 83 north out of Baltimore. its almost 11:00 and im keeping up with traffic, about 70mph. So i see this car fly up next to me, and just stays next to me. It was a BMW paceing me. So i hear him down shift and take off a little. He gets to myfront bumper then backs off. when he did this i could see it was a 323 or 328 it was a 320 something. So i turn on my dome light and point forward. I hear him down shift so then i down shift into 3rd he starts to pull a little his back bumper is at my front bumper. Then i get full boost. and just take off i pull by like 2 cars and just keep walking. i shut it down around 105-110. it was pretty fun. Those Damn Yuppies

Then i get full boost

the JRSC always gets full boost ;)

the JRSC always gets full boost ;)

No it does not. 5th gear 55mph....then you floor it only gives me 3-4psi. At low rpms there is not full boost at high rpms there is full boost. I NEVER HAVE FULL BOOST IN 5th GEAR. you do not always have full boost with this blower

my jrsc setups have always gave me full boost instantly. but ive always ran on a 2.5 from the collector all the way back. thats also assuming i dont experience any belt slippage.