2g with 1g swap

[Turbodog97]

Alright well Im havin a fuel problem with a 1g head, cams, and intake manifold swap that was done in my 2g 95 gst. THe car seems to be running a little rich and I find myself fillin up for gas several times a week. The local shop says I should get it dynoed because they think since the upgraded manifold is suckin in more air it is dumping more fuel to balance it. Anyone else done this swap? I was lookin into getting a fpr or something like that to help anybody have any other ideas? Thanks

[kjewer1]

I would check for boost leaks (runs rich under boost) and check the cam timing again, as well as the ignition timing. They wont directly affect fueling, but can have a negative impact on fuel economy. The added airflow is usually in the 3lb/min range at WOT with a typical setup. Hardly enough to affect fuel delivery at WOT, never mind cruise where it has no measurable affect.

[scottsee]

have you checked your bfp? what kind of mods do you have?

[Turbodog97]

Well I just got back from the shop...the cam timing is perfect and so is the ignition timing. There are no boost leaks or fuel leaks either. Is it possible it could be a faultly primary O2 sensor? We were going to hook it up to the wideband to try and adjust it and also replace the O2 sensor. If it's not that then I dont know what it could be. It was also suggested, as a last resort, to get one of those air fuel adjusters, the smfic or w/e its called. Alright thanks