Hey guys, I got this early 80's 3.5 hp Briggs and Stratton Snapper Hi-Vac a couple of weeks ago at an auction. Three mowers for 15 bucks, I figured I cant go wrong. The snapper fires with starting fluid but I have it in my basement so I cant run her on gas with out stinking up my house and it is quite the task getting her outside by myself. My question is will it run with only 50 psi? It seems a bit low to me, I would be happy with 60 psi but I am on the fence with 50 psi. Any thoughts on this? thanks!!