Re: buying tips
Welcome aboard! They are great cars.
The "huge lag" you are experiencing could be the intercooler pump going out.
They are easy to fix and a new Johnson pump is in the $150-$180 range.
I am sure someone else will chime in on this....stand by.
Since you just bought it, have the dealership check the pump to make sure it is working.
The car will go from Corvette like acceleration to geo metro like acceleration when the pump quits working to give you an idea.
Cheers,
KrzyFast