need some help i just got building my 87 camaro i put aluminum heads, a thumper comp cam, long tube headers and 32lb injectors. the car starts and runs but will not idle on its own in order for it to keep running i have to keep my foot on the pedal. its also running lean.

 

Have you had a custom tune done to suit the mods?

Why such big injectors in a 350, guys run 24's in 383's?

I suspect if you have a stock tune it will be super rich with injectors that big

 

If it's not tuned yet I would suggest starting there.

 

and check for vacuum leaks, as well

 

no i have not done a tune yet.
if i put a custom chip in it will it help? where is the best place to get a custom chip made...cheap?
if i put a high pressure fuel pump in it will that help the running lean issue?

 

Of course
You have changed so many thing away from the stock specs there is no way the computer will adjust

http://www.pcmforless.com
has good reputation for online tuning


No
A stock TPI pump is a Hi pressure pump
How do you know it is running lean?
Have you put a wideband O2 on it or datalogged it to see exactly what the computer is seeing and doing ?
What is your fuel pressure?
With injectors that big on a stock tune it should be running pig rich everywhere

 

Well when I finished putting the parts on I started it up and ran it for about 2 or 3 mins engine code 44 piped up and it showed symptoms of a lean condition like everything got hot to quick

 

Face palm

 

So you put in a poser cam and..................................

 

So you are only guessing then ?
The timing being out will have the same effect

 

I dont know anyone that has had luck using a thumper cam with EFI

 

 

the timing isnt out. and im not guessing the ecm said its running lean

 

i did my reseach before i bought the cam and it seemed the best why to go.

 

still could be a vacuum leak