I really doubt anyone could tell whether they had ur5 at .025 or .035 or any other brand for that matter. A spark is a spark. If the ignition is working properly then just about any plug that will thread in correctly will be able to fire off the charge. The ignition is what generates the current. Not the plug. If .002" gap makes a difference then you have ignition issues that will constantly re-appear. Most don't even have the proper tools to measure .002" difference in a spark plug gap. For a street plug the stock r44ts or a range colder is a great choice. Or any of the other brands equivalent to those.
Thanks Bison I put the engine in the car with new ring pac sounds good have not put more than a couple of lbs of boost thru it in about 150 miles. Just going to drive it and enjoy it for now. Maybe someone will goat me into making a few passes but right now I'm still saying no to racing it at the track. John
BPE2013@hotmail.com