Just curious, what is the most power the intake from a stock 305 TBI from a 91 RS will put out when it is put on a built 350?? How would it react if a custom chip and bigger throttle body was added?? Thanks

 

The stock intake manifold is a piece on anything more than the Lo5. Even on the Lo5 (350) it's a restriction, just not as major as if you were to slap the same intake on a built 350. Just don't do it unless this is for a daily driver. Don't take a nice engine and hold back on the intake after you've got heads and a good cam!
A custom eprom can make the stock 305 TBI system with stock injectors (cranked fuel pressure) can make the car run decent. Just don't expect any power above 3000rpm on a "built 350" which makes more than ~280hp 350. Can I ask why you would to slap a stock TBI intake from a 305 onto a build 350?

 

stock intake wont work with a bigger throttle body

 

Weiand 300-49 intake manifold.
Holley 670 CFM TBI. 502-6
Gaskets: Holley 508-11
TBI Spacer Custom made to fit for EGR by DC Water Jet.
(This is only if you are going to hook up the EGR Valve....)
The wiring hookup you will need to get the right connectors for it, because the stock one has a different connector but the leads are the same
Engine: 350 CI (I sure hope it has a decent camshaft like the Crane 2030 I have in mine, it is computer friendly and works pretty well with my setup, but dunno if you are going for decent idle. The 2020 or 2010 might be better for lower rpm idle.
I think I need to talk to Jon, maybe he can fine tune it better than the Hypertech thing I have in mine now.
Do you have cruise? Your vacuum will be less and less with a higher lift cam, and your cruise will not work too well with less vacuum. I have decent vacuum with the 2030, but I think going any steeper you might end up having to get a blower or something to force more air into the motor.
I am not a cam expert, but what I have learned is that you can't just pick a cam out of a pile of them and expect it to work well. Live and learn I guess. The wolverine cam I had in there before was WAY too much for the computer to handle, plus I had no vacuum, and the advance was set ridiculously high, even so, I was stalling when I stopped. Yanked that thing out, put the 2030 in.... Been running fine ever since.
Check out my lil bird:
http://www.lvfbody.com/whoismember.asp?memberID=101
Read the mods I have done and view some of the pictures too.
No I don't have a RWHP or Torque value yet. I still have the 273 rear end, hopefully soon I will have a 373 posi, (I can dream, this car has been very expensive for me so far, and one thing leads to another thing of course.)
I am guessing but I am pretty sure the engine has about 300-325 HP at the flywheel and a lot of torque. Until I have it dyno'ed I can't tell you what it actually is RWHP or Torque.
It could be more or less I have no clue. I will let you know the results when I get them myself!
It's been 8 months. Eight long months. But it is coming together nicely and I can finally be proud of my ride.
-Snowdog

 

with a higher stall you wouldnt have been stalling at idle