Actually, you guys had the idea first. I didn't know Timbo was working on it already. I'd like to hear Wistech's results, also if he can compare. Some others threw out some good ideas!
I have a head here with an extra tapped piece in the throatway. It's probably there from a "secret" nitrous injector done by Jordy. I bet that could be used for a variable suction source -- let me know optimum location, tks.
From what little I ran it last night it does work just like all automobiles. When the quad was idling and vacuum was up the fuel pressure would drop down to 40psi (where I adjusted it to) when snapped open pressure rose right up to 48psi. So anytime the quad is under load(low vacuum) the fuel pressure will be at max. We will not know till tommorow if the fuel system can be made to work better with this setup but thats what R@D is for.