how much shold a stock 88 TII FC be boosting

 

5.5 psi or about 300 (30) on the stock guage.

 

at what RPM

 

3500-7000 under load.

probably lower too... you should get alittle starting around 2000.

 

If you don't have a good aftermarket boost gauge, get one. The stock one is basically useless.

 

This is so true. I've never used the stock gauge....ever. What the hell dose the #s on that thing even mean? It's like gib-er-ish to me. Maybe it should have said in the manual that "You must be able to speak DUMB *** befor driving this car"

 

i got an autometer it works alot better then the stock one