same thing happens to me, but engine is at like 220-240. Carb temp is a little less. As soon as the fuel hits the carb you can see it shoot back towards the tank. What I do is take off the body, drop th car on the starter box and start it WOT, this usually pulls the fuel a little faster, enough to fire. Once I get that first burp I let off the throttle and she's good to go another tank. One thing I'm working on now is to remember to refuel every few laps to not have to start so much, and stay on the wheels.