ok guys I messed up I though the tread read "it wont start when its hot " what I said really appies when is the "hot starting problem " how I confused the two I dont know but I would still check for residual vac to the shut off valve on any problem where is hard to start and then it runs perfect lets face it, any residual vac on that line will force the IP to starve the engine of fuel thats exactly what it was designed to do