boost controller ?'s

[sassan]

so i have had a boost controller on my car for some time now just a cheap ebay one which has worked just fine. i had it located under the hood next to the turbo. i originally got it cause i could only hit 4lbs of boost at max. wen i put on the controller all was good n kept my levels at 10lbs max NO MATTER HOW MUCH EXTRA WEIGHT WAS WITH ME (meaning other people). the old one took a crap so i got another one. this time i have it located inside the car right by my e brake. the strange thing is before with the old one i had to turn the knob a few times to get up to 10lbs with this one im hitting 10lbs without even adjusting the knob AT ALL. and it seems like wen i really get on it hard that the boost wants to go past 10 but it just doesn't. i just dnt wanna over boost my car n blow the engine wen i have more weight other than myself with me. does having a long vacuum line affect the boost levels? i gotta make my 7m last until my 1jz is ready.