I have a 87 TurboII. It has been street ported, bigger injectors (720), 3" down pipe with the racing beat exhaust, intake. no power steering and no ac. with electrioc fan. i am running 8 PSI. what would be a safe pressure i can run with my car??10 or 12

 

get a bigger fuel pump

and do you have a s-afc or some thing else to control the bigger injectors?

 

and then you can safly go up to 12 psi

 

10 will definately be OK....

If you slap an SAFC and tune the car, i see no problem running 12 but you should prpbably put a better FP in it

at 8 PSI, you car is probably running rich righ now with the 720's anyway....

If you removed the AC heat exchanger, you stock rad should hold up to the HP as well. Make sure your coolant is up to snuff, and its been flushed and all that crap.

 

I am looking at getting a ACF II.

What type of fuel pump should i get i am thinkin about the cosmo pump?