No problem, glad I could help.
I too was looking into the 347, but with the better rod ratio of the 331 and less stress on the cylinder walls, I went with the 331. Also, a 347 requires even more notching of the cylinders than does a 331. The older 347 kits had oil control issues - the wrist pin was up into the oil control ring, however, they've seemed to solve this problem by using a different rod length and placement in the piston.
Both are good strokers, I just like the 331 a little better.
Good luck with your stroker build-up and if you have any questions, feel free to ask.
E
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1991 5.0 LX Coupe - 40,750 miles
331 cu. in. / Tremec 3550 / BFG Drag Radials
12.22 @ 114.31 mph - w/1.89 60'
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