re: the MAF sensor itself, the original 5.0L Mustang/falcon air meter is SMALL! Roughly 55mm in diameter and is a restriction in the intake system. 5.0L Cobras use a 70mm MAF which is much better and the 5.8L Cobra R uses a 80mm MAF which is rather big and doesn't pose a real restriction until you massively increase the airflow capacity of the engine. As far as MAF sensors go, the 55mm MAF should be the first thing to go, as it can limit the amount of power the engine is capable of making. A larger diameter air meter will create less of a pressure drop and be less restrictive. If the engine internals are stock. I would prob go with 30# injectors seing as 24# are the same cost and you may need to upgrade 24# at some stage;and a 70 to 75mm maf. C&L do a 73mm for about 195US
A bigger throttle body will definitely slow you down by robbing you of low end torque if you have a stock 5.0 falc. 65mm is already an aftermarket size TB. if its a stock TB make sure your not measuring the external face which may be 65mm. but the internal where the butterfly closes..
My opinion 65mm TB and 73mm maf 24 or 30#'s will be a good combo. unless you've got mods we dont know about.. your profile dont say much
LOL,, all that time i spent typing and you posted your mods.... damn it!!!!!!!..
dont see why you cant upgrade slighty.. 65mm TB should still work fine.. definite on 30# or 42#. you might find that the differnce between 65 and 70mm TB's is marginal.. and then your still prob better off spending the money elswhere for now than on the TB. definite go on the maf and injectors though.. get some dyno figures when you do it (when/if you do).. id be interested
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