When ever my car gets a to full temp, about ut 210, it starts to cut out. It happens during light throttle at first. I put my foot in it a little and it smooths out. But I cant drive around around live Im at Daytona all the time. Eventually the car gets real warm and does the same thing during hard throttle too.

The pump is a Walbro 255 unit with less than 50K so I dont think thats it. FP filter has 20K, might just replace that for fun.
I know I need to check the ground on back of the engine. Might be loose.
It could be the FP Relay right? Might replace that just for fun.

Also I thought about checking the voltage at the connector between the back seats. I could back probe em and check what my voltage is while driving. There are three wires. I want black and red right? Whats the third one for, I think its green?

Any other suggestions?

 

more info would be better. my guess at this point is maybe your running rich.

 

What other info do u need?

I have 91 RS with 96 truck block, afr heads, hot cam and Holley MPFI Intake.
I use 36lbs inj. and a walbro 255 pump. Rest of fuel system is stock.
Ignition is stock except for good wires and a DUI dizzy.

I think it smoothes out when my foots in it because the Fuel Reg gives it a couple extra psi and my alternator cranks out a few more amps. My voltage meater says I have 13.4 volts at idle, but I dont know if that changes while driving. The voltage guage in the car isnt very accurrate.

 

you edited your original post. you had very little information posted before.

 

So am I on the right track?
Can someone idetify the FP wires for me?