What are the thoughts on using the stock TBI fuel pump as a pusher for a mechanical pump? Will the mechanical pump act as a regulater of sorts to keep the pressures reasonable? I know this tends to burn up the electric pump, but using a mech. pump with a return might help alleviate this problem. The plan is in the future, when the electric pump fails, I would modify it to just run off the mechanical pump. Any info on this modification?