Engine loses power after launch
I'm running a Vega with a 750 h.p. small block with a 1090 Demon carb (96 jets). I use a trans brake, and come out at about 4500 rpm. When the car hooks well, and the front wheels come up, the motor will lose power instantaneously, then regain it....sometimes twice. I have a vent tube from breather to breather on the carb, and the float levels are where they should be. The car is going 9.50's @ 143, but I'm sure I could be in the very low 9's, if this problem goes away. There is really no loss of power or misfiring after the initial launch. Any suggestions?