First time on the dyno 365rwhp-370rwtq.mildly ported lt-4 heads,xe 230-236,stock tb,stock injectors,slp shorties.I'm sure if i upgrade the stock parts it will squeeze a few more out.

 

Those numbers are way low. Get rid of that cam for a proven cam and put some LT's on that thing.

 

You may want to upgrade your injectors as well.

 

Before you go swapping every part because it seems the easy thing to do...

Stock injectors can easily support cars going 115 mph in the 1/4.

It was your first time @ the dyno...how was your AFR...timing...tuning?

That cam is a good cam.

You can easily squeeze 400 rwhp/400rwtq with the parts you have if you are willing to work on it.

 

I agree with Canton, the combination of parts is good and there's nothing wrong with that cam. I had that cam in a 355 LT1 with stock heads and a P600B that made 536 at the wheels.

As mentioned, look at items like AFR. If it were me, I probably would go with a bigger throttle body and long tube headers. Try to narrow in on the tuning first.

 

aren't stock injectors maxed out at 350RWHP?

 

More information on the heads please. Valve size, flow numbers?

Camshaft should do the job, larger TB is more neccasary than the larger injectors but I would do both.

 

It's not the injectors it's the tuning or lack there of. My car ran 11.24@120mph with the stock injectors and a decent tune. I went from running 11.98@113mph to 11.37@118mph on the very next pass with just a PCM reprogram at the track. Longtubes, good exhaust (headers back) and a bigger throttle body wouldn't hurt either. With LT4 heads that cam and a 383 you should be making more power than that. Goodluck Later Clint

 

Thanks guys,i agree i dont think he put much effort into the tune,he did two pulls,including the baseline pull.i dont have a flow sheet ,but they flow close too 270cfm,2.00int-1.55ex valves. the car runs and sounds great,im sure with more tuning,lt's,tb it should get a little more out of it.

 

My car trapped 116mph on the stock injectors.