Experimentation. The drive of the student of Nature (Engineer) to understand and gain Knowledge. Some things I have found to be true...I found that most wire insulation will swell with fuel imersion. Most silicon will swell with fuel imersion (ie... weathertite connectors.)But, shrink wrap will not swell. It works.A good gas seal cement/ adhesive... Seal All/ Not JB Weld. It also works good on the "fuel bucket."Wire to wire connection... Try those screw type plastic connectors available @ Summit. They survive fuel and do not come loose. They work! Also, a solder joint and shrink wrap will also work (low cost).Aeroquip socketless hose (black color) will survive fuel. It is quite rigid, but, then you can use 37* alum bulkheads with good fluid flow turning radius.It helps to have good access of the fuel sending unit. I cut a hole in the rear floor pan for access. What a time saver (about 10 minutes to remove the fuel sending unit from tank). Some do not like this approach, but...wth.It is my opinion that the stock 4th gen fuel delivery line size and collapsed bends are a major reduction to fuel flow. So, I went with all socketless hose (-6 size) and nice long radius bends (inside and out the tank) . And, a smooth teflon inside diameter for a laminar flow profile (less friction head).Hope these bits of sucess help others. Glad to share info. Thanx for all your help on this web site. I have used alot of this info. (97ss 383 - D1) B.