I started out with the Lokar dipstick but I didn't like it. While it looks really nice from the outside, the blade is so narrow it's almost impossible to read your
oil level if you have clean
oil. Putting it back into the car one day, it apparently hit the windage tray and curled "up." The next time I pulled it out to check the
oil, I found that it was about 4 inches shorter than it was supposed to be.
I solved the problem by going to a wrecking yard and pulling a dipstick and tube out of a Ford truck with a 360 or 390 in it. It works way better than the Lockar did.
By the way, make sure you have a lot of clearance to the windage tray. If it's close, I recommend that you trim the windage tray to give it at least a one inch clearance.
Chris