engine performance Q

[1SLO306]

I have all the mods listed below but still have the stock mass air meter and tb. How much is this killing my power? my car dynoed at 212rwhp and 265rwtq and the a/f was 10.5:1 or 11:1 cant remember. And is the opening for the tfs street heat 75 mm? Thank for any help!

 

[25thmustang]

Those numbers arent very good. Was this a Mustang Dyno or a Dynojet?

My dads car with pulleys, catback and a K&N did 212/276 on a dynojet.

Id say buy a 70mm TB, 75mm MAF and go from there. I dont see that hurting power that much, but it should help!