I have a 1969 f250 ranger with a 390 engine. The spark plugs were very recently replaced, as in the last 50 miles or so, and I want to replace the wires now too as the wires on there are pretty low end and crappy. Here are the question: Is there a brand I should buy over the 8mm wires for sale in the LMC catalogue? What boot configuration should I run with and what are the differences between the 90, 45, and straight boots? Thanks everyone for your time!

 

I'd just run standard wires. They were all straight boot 360-390 and worked well to keep them away from the exhaust/head heat. Straights, with the valve cover mounted separators worked well.