Do these numbers seem right

[2002BLGT]

mods are GT40 y303 heads , B cam , typhoon intake ,70mm TB and egr , 24 lb injectors , 73 C&L mass air calibrated for the 24s , stock shortys and stock gutted H pipe , 2.5 inch flowmaster catback

245 rwhp and 274 rwtq at 13.3 air fuel and 17 degrees initial timing 36 total.....

I was hoping a little higher , could the exhaust be holding it back that much ???????

 

[90mustangGT]

Well, it certianly isn't helping any with your mods.

 

[2002BLGT]

ive seen 20+ rwhp gains with long tubes on other cars im wondering if mine will jump that much ? , also , would having no cats and a functional smog pump set up cause the air/fuel probe in the back to show a leaner reading than I got before with my wideband when I checked it in front of the cats ?

 

[N8Miller]

after puttin all those mods on, why would you leave the stock headers/h pipe?
you should be in the high 200s with those mods.

 

[2002BLGT]

after puttin all those mods on, why would you leave the stock headers/h pipe?
you should be in the high 200s with those mods.

ran out of money LOL ....

 

[Curse]

ran out of money LOL ....

I hate it when that happens.

 

[DMAN302]

Heads are OK, cam..well there are better...and as for your choice of exhaust...well...nough said. You have gotten correct numbers for the parts you've chosen.

 

[JerryDaugherty]

I have a brand new x pipe if you wanna upgrade. 100 bucks!

 

[9250stang]

I dynoed over 300 with GT-40Y's on an old setup I had on my old '92GT.

Throw an exhaust on that thing.

 

[89CopCoupe]

Heads are OK, cam..well there are better...and as for your choice of exhaust...well...nough said. You have gotten correct numbers for the parts you've chosen.

Those heads with your combo are good to about 40 additional horses (vs stock) ...

Your cam will run to the end of those 24#rs so I won't worry about that

And your exhaust (or as I've seen it spelled once "exost" ) ... come on 'dude', this just negates your whole post