This is the clasic "stiction" issue, If it runs fine when warm the injectors are ok.

Make sure you are on the latest flash. run 5W40 oil, I recomend Rotella Syn.
And try hot shots. If it does not work he will refund your money!

 

Will look at it more then. Did not know they still did the refund part. Running dyno rotella right now. Got put in when other injector went out.

 

Go to synth rotella, that will help cold start

 

Just saw this.

http://albuquerque.craigslist.org/pts/1392246505.html

No idea if that's expensive or not. Seems like it could be. I am guessing all C6's are the same ??

 

Planned on going synthetic, but haven't put enough miles on it to rate an oil change. It is breaking too much to drive !!!

I will eventually win and it WILL run right soon....... I hope soon

 

Hey, It's monday!!

 

The internal workings of a C6 are all the same. This one being behind a 351M makes it a "Big Block" tranny. Being that it's recently rebuilt. $750 isn't too bad.

It will NOT work if you plan to put this behind a 351W or 351C. Just so you know. And $500 for a 351M is a bit much since they aren't all that desireable engines. But, you can put it behind a 460 and have a .