89 mark v11 bb sd

[cdmb]

I have an 89 mrkv11 bb with speed density motor,
On a tight budget what would be some suggestions for more hp?
i have already made a cold air intake system and used k&n filter, I am going to get x pipe system and flowmasters, But does anyone know if i have to change the chip in ecm? Or what else can be done on a shoe string budget?
Maybe 21 or 24# injectors?

 

[NYC LS8]

Leave the injectors alone. Waste of money on a stock motor since they're good up to 270-ish HP. Leave the ECM alone, too. Not much out there to do that's cheap. You can adjust the timing...that's free.

 

[cdmb]

Thanks NYC LS8

 

[Bgdogray01]

You can go mas air with mustangs c.p with 19 injectors an 9mm wries that is what I had .new I am going 347 24 injectors and A.F.R. heads:shifty: