new holly 670 cfm installed....
#1
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Location: california
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Car: 1989 RS
Engine: 305 LO3
Transmission: auto
new holly 670 cfm installed....
car runs great with the holly tbi but in the morning when cold runs really rich and did not do that with the stock tbi anyone know what caused this and how to fix.
thanks guys
89 rs 305 tbi
thanks guys
89 rs 305 tbi
#5
I went thru the same thing when I put one on my 88 Blazer. If you hook up ALDL to your vehicle, you will find out that it's also running about 20% rich in closed loop too. From experience, I can tell you that the only cure is chip tuning. It's not that hard, it's just tedious and time consuming. Do a search on my username or on "Holley 670 TBI" and you'll find out more than you ever wanted to know.
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