Here's the final fuel rail arrangement - dual feeds at the rear of the rails with AN -6 hose and separate AN -6 outlets at the front. With dual inlet ports on the regulator, I'll probably make the crossover in the regulator rather than with a "tee" before it.... I think it should make for a better pressure vessel balance with less pulsing in the rails:

The major issue I ran into was routing the driver side fuel rail outlet to the other side of the engine where the regulator will be located. I finally had to admit that there was no good way to make it work without a 270* tubing loop - or I would have to cross over the top of the blower case - not something I wanted to do. The apparent solution is to use the '90 distributor, which has more clearance between the distributor bowl and the lower intake. Even more clearance can be gained by also using the '90 lower intake, but I think the '89 lower intake will work with the extra clearance provided by the '90 distributor. If an OE ECU is used it would require the '90 model, but since I plan to use MegaSquirt, I see no reason why I can't use the '90 distributor. This picture shows the close quarters around the rail outlet with the '90 lower intake and '90 distributor - it's much closer with the '89 intake:

There are other clearance issues - In order to gain room for the passenger side rail outlet fitting that goes into the regulator port, I need to remove this boss on the rear of the alternator:


Now I need to make some clamps to stabilize the hoses. <img src="/forums/images/graemlins/kewl.gif" alt="" />

Frank