When I was in the process of changing to the hedman LTs overthe LG4 manifolds, the plugs came out ahnd they looked almost brand new, they just ahd a little dark brown on the porceline and that was just on one side.

Could it be possible the carb is actually right on? Or could I be runing low on fuel? I have a stock replacement mechanicle fuel pump on it right now, I thought it would be running rich. I hooked up a presure gauge and it stayed at 5-6.5 all the way through 2nd and into the middle of 3rd, and never showeed signs of falling off. Dont know how it does with the headers yet, still putting the passengerside on.

 

Fuel pressure isn't a tuning parameter with carbs. You just need enough pressure to push fuel up into the carb bowl(s) during all phases of operation.

Fuel (float) level in the bowl is a different matter. But, that should be set to the "proper" level, and tuning due to other changes in the engine should be accomplished with jet changes, power circuit modifications, pump shot, etc.

 

I know the floats have to be off, or else the pressure is still spiking at idle to 7-8psi even with a FPR (non return), becuase the car will stubble and run rich when turning hard in both directions. The FPR helped alot with it, but didnt completely get rid of it.

Looks like I need to jet her up and see how it runs then