I bought 88 GT vert few months ago thats super clean and has a jasper crate motor and whole cars stock. I put msd cap,rotor,coil and new motorcraft pkugs and bbk cold air intake with speed density adapter cuz its not mass air car. But every once in a while when it get on gas hard and shift from 3rd to 4th or 2nd to 3rd it will backfire out of exhaust and in worried its running lean cuz of more air flow and dont want to damge brand new motor. Question is doesnt anyone have any advise what could be causing this. I was thinking of getting adjustable fuel pressure regulator and gauge for shrader valve to monitor or give more fuel if that would help. Any input would be helpful
Will cold air intake screw up speed density aairbfuel mix
- Thread starter jz88vert
- Start date
Well, get'n into it from the jump. Grab a couple pics of the stang including the engine compartment (or dog house depending on age/region) and get over to the fox forums, it's down the hall just past the coffee pot on the left and the restroom on the right.
As to the CAI and the backfire, too many things to consider an answer here. I'm not a real mechanic, but I do play one in my back yard, right under that big tree, you know, the shady one.
Oh, welcome to
As to the CAI and the backfire, too many things to consider an answer here. I'm not a real mechanic, but I do play one in my back yard, right under that big tree, you know, the shady one.
Oh, welcome to
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