dougs d450's edelbrock dual plane air gap 4 speed 3:55 I am going to try a longer throttle cable and see if that works. I have it, just not installed yet. with the 750 dp, the pedal hits a wall before its all the way down. That is why i suspect the cable. If the cable does not work, then i must have a bad carb. I previously had a 650 dp ( on the previously mentioned 340) and I had no problems with the throttle cable.