340 runninng lean and overheating
Hi
So I have been lurking around this forum for quite some time now, after buing my first v8 powered car last year. It`s a 340 powered 71 dart, wich last year, ran fine. It has an edelbrock inlet maifold and QFT carb. For the winter I wanted to mount headers, wich proved to be quite a challenge as things was very tight!
Ended up removing the heads to be able to fit them. Got it all together last week and this is when the problem occured. Now, I am very unfamiliar with V8`s, so consider me a newbie.
As I fired it up for the first time the idle was good once it got up to temperature, but when I give it a little throttle, there is almost no power, and it sounds like a machine gun. Loads of backfire perhaps, and temps going very high very fast. So, I check the plugs and they are very white indeed.
I have checked the distributor cables going to the correct cylinder in the correct order 3 times, all seems good. I guess the problem is either ignition or carb related? I am wondering what I can have done wrong when I assembled the engine? I have tried to search the forum but cant quite find any answers that I understand :)
Also, English is not my native language.
Hi
So I have been lurking around this forum for quite some time now, after buing my first v8 powered car last year. It`s a 340 powered 71 dart, wich last year, ran fine. It has an edelbrock inlet maifold and QFT carb. For the winter I wanted to mount headers, wich proved to be quite a challenge as things was very tight!
Ended up removing the heads to be able to fit them. Got it all together last week and this is when the problem occured. Now, I am very unfamiliar with V8`s, so consider me a newbie.
As I fired it up for the first time the idle was good once it got up to temperature, but when I give it a little throttle, there is almost no power, and it sounds like a machine gun. Loads of backfire perhaps, and temps going very high very fast. So, I check the plugs and they are very white indeed.
I have checked the distributor cables going to the correct cylinder in the correct order 3 times, all seems good. I guess the problem is either ignition or carb related? I am wondering what I can have done wrong when I assembled the engine? I have tried to search the forum but cant quite find any answers that I understand :)
Also, English is not my native language.
