[RedBarchetta]

If you do go to a mechanical pump, make sure your engine has the pump eccentric already mounted to the front of the camshaft. Some builders that know if the buyer is going to go electric will leave it off entirely. Mine came loose once (the dowel pin used was 1/8" too short when installed) and it was quite a bit of surgery to just fix it (pan off, balancer off, water pump off, front timing cover off, etc.). Major PITA for a $2 steel dowel pin! @#$&% RDI. But it's now rock solid and you know it's reliable when done right. Good luck either way you go!

-Dean

P.S. You can use a mirror or bore scope and see the eccentric quite clearly through the fuel pump mounting hole.