I just hooked up a brand new Perry VP30 pump to my MVVS 49 two-stroke glow engine to run the combo in a test stand. Checked what high speed needle valve setting the engine wanted without pump engaged. Then engaged pump and adjusted the pump pressure to roughly equal the same high speed needle valve setting. All seems to function well but I´m a bit worried about the constant spitting of fuel from the small drain hole in the red plastic body. Is this normal or indicating a problem or maladjustment..?? Thanks in advance for sharing your experience with me…….Cheers/Harald