[RICK LAKE]

Gunner 2 things How much does the timing change under WOT, Need a timing light to see if the timing retards too much. The other thing is to get a flatter cam for the accel pump. 30cc is fine you really don't need a 50cc unless you are running a 700" cam, 12.5 and up compression. 6,000 rpms hole shots.
You can also bend the lever or adjust the screw spring if it's like a holley to slow down the squirt on accell. An LM-1 meter in the tail pipe will really tell you which way to go with the setup. The car may run OK, but A/F ratios could be off by 1-2 points and still show no driviability problems. Go to the dyno before you change any more things would be the safe thing to do.