1995 Eagle Talon

Engine Mechanical problem
1995 Eagle Talon 4 cyl Front Wheel Drive Manual 124600 miles

I have a 95 talon and I did a motor swap to a 99 Eclipse motor. On the fuel rail for the talon motor it had a return fuel line and a FPR on the end of it. On the Eclipse motor that I bought for the swap, the fuel rail does not have an FPR or a return fuel line. My question is what kind of problems could I have if I cap off the return line and use the fuel rail from the eclipse motor?
April 18, 2010.

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