Porting small block 915 j-heads

That's how i made my first bench, as the hole get bigger the inch of water go down as you only have a set volume.
It will get you hook and cause you to make the next step when you realize it short comings.
don't get me wrong you can lean a lot. A lot more then if you had no measuring stick.:)
If you count that one i have had 3 flow benched. but i consider that one as just a get your feet well exercise.
quick simple and most important vary inexpensive to build.:thumbsup::thumbsup: