24lb

[fortlawn78]

I went from.a 19lb injectors to 24lb and my car running like it loading up.. do I have to get the 76mm mass air? Thanks

[fivepointwoahhh]

I went from.a 19lb injectors to 24lb and my car running like it loading up.. do I have to get the 76mm mass air? Thanks

you need to get a maf calibrated for the 24's

[jarhead]

I would recommend it due to the puter thinking its still has 19lbs in it.

[Notch93]

You need a calibrated mass air meter or a custom tune, to run a larger then stock injector. What was the reason to change to the 24lb injectors?

[fortlawn78]

I put together a 306 with trickflow upper and lower and 70mm throttle bdy gt40 heads

[Stable]

put the 19s lbs back in.....

[Silver91Hatch]

Unless the 19's are maxxed out, which I doubt that motor would do, I would run the factory 19's. If you have access to a salvage yard I would get a set of thin body EV1 plug 19's from a newer Thunderbird or Crown Vic with a 4.6L. They atomize better and provide better fuel control.

[fastoleman]

put the 19's back in and turn up your fuel pressure (around 50-55 psi)

[fortlawn78]

Thanks!!

[Bubba408str]

wonder why Ford put 24's in the mighty 93-95 Cobras.

[Silver91Hatch]

wonder why Ford put 24's in the mighty 93-95 Cobras.

And all DOHC 4.6's.

[NC STANG GUY]

wonder why Ford put 24's in the mighty 93-95 Cobras.

And all DOHC 4.6's.

Then put 19s in the first gen 351 gt40 motor Lightnings...