I just added a MSD box to my 89 formula and its running lean what do I need to do to get some pressure to the motor. Or do I need to run bigger injectors?


I DRAG 2

 

ajust your fuel pressure look under the tec. articals they have something on that subject it might just help you out

 

U can do the tech article or u can buy a AFPR from turbocity.com And do it that way as well. Remember to get a Fuel Pressure Tester that works with GM TBI. Make absoulte sure it does and save the recipt anyways. And check ur fuel pressure before u install the AFPR and after when u go to adjust it.

------------------
Eric Natzke
91 Firebird 305 TBI
"It Ain't Stock"
http://members.aol.com/j007golden/91firebird.html
For info on certain parts or mods go to the site below
http://members.aol.com/j007golden/modeval.html

 

i second erics response