i just got a jackson racing supercharger installed on my 94 teg ls and there seems to be a leak somewhere.when you start the motor it pulses between 1500-3200 has anyone run into this problem and if so what did you do about it. please get back to me for i need my car back bad................

 

Ahh the joy of vacuum leaks.
1. Check for any obvious vacumm lines that are missing or damaged
2. Make sure the 4 allen bolts that hold the blower to the manifold are tight (should use lock tight on these when they were installed)
3. Make sure the bypass hose is clamped down
4. Did you use a new intake manifold gasket and torque down the manifold correctly?

I would work through that list for starters, if none of those are the problem I can come up with some more.

 

I had the same problem dude.....when i started it up it revved up to 4k and then dropped down to 1 and bumped up and down to 3k , really pissed me off ...it was no vaccuum leak....i simply left the old intake amnifold gasket on and put a new one over it..soo i was running 2 gaskets lol....u might want to chedk that.....PEACE or it might be ur cold idle valve is stuck or jsut bad.......hope this helps...PEACE

 

I third the check of your mani gasket, that was my problem.