Trying to tune a 90 5.0. I have put in 30 lb injectors and still seem to run lean. I have had a buddy of mine tell me that the MAF is wrong for the injectors. What is or would be the correct one for these injectors? Thanks

 

well first off what combo do you have? and pro m makes the best meters

 

Sorry, got busy. I have windsor jr heads 1.94/1.60 valves
1.72 roller rockers
30 lb motorsport injectors
cobra upper and lower intake
3.73 ring and pinion
5spd trans
2 1/2 inch exhaust with shorty headers h-pipe and flow's
stock a9l computer- For now. Looking into a tune.
Will get the motorsport # off of the MAF.
65mm throttle body
no egr spacer
e303 cam

 

What mass air do you have now and 30's seem a lil big for your mods.

 

agreed 24s would have more than sufficed

 

I have part # m-12b579-a70 MAF sensor. I was having problems running VERY lean and burning valves. Thats why someone suggested to put the 30's in.

 

was the car tuned properly?

 

tuned for what? just having heads?

 

Walbro - Mass Air Flow Sensors
Here is a good place for reference.

 

It should not matter what MAF you're running if you get a tune on a chip, the correct way to use larger injectors is with the tune telling the computer what injectors you have as opposed to getting a "calibrated" MAF.