300RWHP On Stock Heads?

[GT Drifter]

Is it possible to get 300RWHP on stock heads?

With long tubes, catted x pipe and cat back, I've heard of 5.0L dynoing at 250rwhp with just those parts.
I'm think an NOS N2O kit set for a 75shot should bump me to 300rwhp.

Any thoughts?
What else do I need besides NOS's kit to run the kit on a stock Stang?

 

[b1gp1mp1n247]

as far as i know you can get over 350 with stock heads. the 75 shot should get you over 300 if not fairly close

 

[GT Drifter]

Any more help?

 

[stang22]

With the right cam, I would venture to say closer to 400 HP, if not more. I know a lot of people will disagree, but I am willing to bet more than one person will back me... To include THUMPER460.

Tim

 

[MadMatt5oh]

My 5.0 is all stock. I have to say its fast out of the hole. I havent driven it much but stock? ='s slow. junk those restrictive heads! thats just my opinion

 

[willys1]

You should upgrade your spark,and retard your timing with the bottle.

 

[90mustangGT]

I have scene a dyno of a stock 89 LX with the only mods being exaust, CAI and MAF with some tuning make 400RWHP and 500RWTQ.







Oh yeah, it had a Cartech Turbo kit on it at 8psi.

 

[GT Drifter]

Heh....do I need to raise my fuel pressure with a 75shot?
What about a bigger pump and injectors?

 

[90mustangGT]

I've been told, and the different brands say that no other upgrades are needed with a 75 shot. I don't know though, I would at least have a MSD ignition with the retards and a better fuel pump because running out of fuel before nitrous even with a small shot sucks.

 

[GT Drifter]

I'm looking at the MSD 6A Ignition and some MSD coils. Should be good, right?
190lph pump should be good right? Stock injectors are fine also?