help with base vortech kit

[russ1979]

After i pay some bills with my tax refund i hope to have about 1k left.

i was thinking of doing a supercharger but it need to be on a budget.

i found this kit: http://www.latemodelrestoration.com...-50L-Satin-V-3-Si-Trim-Low-Boost-Vortech-Supe
i was thinking of putting the 1k then scrounging few the next few mo's to get the rest.
my ride is a 88 5.0 gt with : mass air, headers off road h-pipe, flow-masters, alum shaft, short throw , cold air, 255lph fual pump

What kind of gains can i expect?
will i need anything else?
can i upgraded it later to the h.o. one?

thanks for the help

 

[russ1979]

what about the paxton novi 1220?

 

[Rick 91GT]

The SI kit will add about 80-100RWHP about 360-370RWHP is what they advertise. Its a good entry level kit and you can upgrade the head unit to a larger one down the road if needed. The Paxton is also a good choice, very similar units as far as power.

 

[Kevins89notch5.0]

I would just buy a used S-Trim for less that comes with the mass air meter, maybe injectors, powerpipe, etc.