Engine Missing at higher RPM

[sinnaevd]

So my little 4 banger seems to be spitting a bit up at around 4000 RPM i think.

 

Not sure what is causing it. It idles very very well, runs smooth, there is power, but it sputters a bit at 4 grand.

 

I changed the spark plugs, the others were kind of ugly

 

I am also running gas that is about 2 years old. I am amazed it is even running at all.

 

The engine has been swapped and only ran longest about 3 minutes

 

Do I just need to let the computer read a little bit???

[Pete M]

At the very least you should dump some octane boost into the gas tank. Fresh gas would be better.

[sinnaevd]

I was getting ready to head into town and pick some up, as there is over 3/4 tank of crap gas in it. I am just hoping that this engine isnt gaarbage as well.

[sinnaevd]

i put on some other aprk plugs and wires i had, seemed to clean up the misfiring in one cylinger, really lowered my idle speed

 

Now it is still spitting a bit, but not nearly as bad.

 

still has the crap gas in it with nothing added to it yet. Allin all, this little project should be buttoned up tomorrow.

 

I just need to get one sway bar link and I think that should do it for the safety.

 

It was a struggle to get this thing going but at least it's all done.

 

The 91 Eliminator is next. I got some axle shafts witht he 297x u joints on them to put in the front axle and get rid of the vac disconnect. I had no idea they were still in the 91's....