what reading should i get and and what rpms are the readings from

 

maximum boost is achieved at any rpm above 3000 according to ford. typicly 15-20psi is normal but some people claim higher on stock injectors, as long as you are in that range you are fine.

for the most part this is normal-
1000 rpm driving- 0 boost
1500 rpm driving- 1-2 psi
2000 rpm driving- 1-5 psi
2500 rpm driving- 5-10 psi
3000-3400 driving- 10-20 psi

this is just rough figures, you modifications and vehicle/engine loads will affect the readings but that should give you a ballpark idea

 

thank you soo much

 

DRIVING is the key here not revving.