Not sure on conversion ? Forgot to mention it is fuel injected,don't seem to drop when revving in pits or home,can't tell on track gauges aren't illuminated,it did seem to do better when I went to high side and was on the throttle but would still cut out mid straight away,get off pedal split second ,back into it it was fine,sorry for the novel
Had a similar issue once, had the two throttle position sensors hooked backwards, ran better half throttle down straights than wide open. I am not much help other than that. Clean filters, nozzles etc. Make sure vent on tank is working properly.