I see what you're saying, BUT, I know that they are doing great on my car, and the plug wires have given me no problems, and I did cut them to length and install the boots. I'm using wire looms that run down the side of the valve cover and drop the wires right above the plugs. For a little over a year, as I stated, the engine has been more than reliable. For $1,000, one could install the P heads and roller rockers, new springs, and have cash left over for something else. I built my car on a budget, and it has proven to be a strong runner and a solid car. Patience and parts hunting can really pay off big.