That system + piston hybrid might be the way to go.
Maybe like this, although I think I put the check valve wrong. But the idea is almost like daccels.
http://www.spudfiles.com/forums/fueling ... 21538.html
And the reg could be this:
http://www.spudfiles.com/forums/precise ... 22330.html
Combined with piston actuation, pump-action hybrid!
