I could use some assistance car is fine but i do a wot pull rpm around 3k i let off and popping and some flame comes out of my driver header and only that header i dont mind it but i would want them both to do the same thing not only one

 

are you running open headers with no Y-pipe or any exhaust ??!!!?? if so, WHY

 

No you don't want them both doing that.

Popping in the header and flames out the exhaust means there's unburned fuel. LOTS and LOTS of it.

Probably one dead hole. That cyl is not running, just passing raw fuel on through. Check the spark plugs on that side.

 

i did i checked the all the plugs normal wear also im not running rich

 

the only way i could get long tubes to fit without scraping its not that bad

 

Only way to have flames is unburned fuel.

Blee dat. Doesn't matter what you've "checked"; the only way to have flames out the exhaust, is unburned fuel. Read, repeat, absorb, act.

Find out why you have unburned fuel in your exhaust. One way or another, you have one or more cylinders not firing at the time that it happens. One or more dead holes while it's happening. Since it's only one side, it's most likely only one cylinder. (could be more, but let's stick with "most likely" for the moment) The cyl in question is getting fuel obviously, and since you're not writing about "my motor goes blub-blub-blub at idle and runs very rough under load", it probably also has compression. That leaves only ONE of The 3 Magic Ingredients to investigate: ignition.

Plug, cap, wires; that's all it can possibly be. There are no other possible explanations.

I probably should have said "change" the plugs on that side, not "check". That's the first thing I'd do. I've had too many plugs in my lifetime, short though it may be, that "looked" "fine", but didn't work.

 

it is about time for a tune up new plugs and wires