# attn Domantion **URL:** \ **Category:** PittSpeed Automotive\ **Created:** [October 28, 2006, 2:02pm UTC](https://forums.speedlife.net/t/attn-domantion/185885 "2006-10-28T14:02:45Z")\ **Posts on this page:** 1\ **Showing post:** 75
**Author:** ![Dominator](https://avatars.discourse-cdn.com/v4/letter/d/a4c791/32.png) [@Dominator](https://forums.speedlife.net/u/Dominator)\ **Post date:** [January 3, 2007, 6:01am UTC](https://forums.speedlife.net/t/attn-domantion/185885/75 "2007-01-03T06:01:00Z")
> [@4/21 NYIRP Opening Day](https://forums.speedlife.net/t/4-21-nyirp-opening-day/26899/21): > > I went through all that in my research phase. I have pages written out of where I made a change and recorded the differences. Then reverse the pattern and see if it still holds true if you do something else first. I don’t use a dial indicator to measure lift. I use a set screw that sits on the valve stem (adjustable) and then I use .050 shims, numbered for consistancy. Yes, lots of variables and I am sure I haven’t figured them all out by any means. I have also tested with different tubes for exhaust and clay molding for intake. I prefer to test with the manifolds on for NA though to keep things simple and more “real world”, even if its only 28" of water. > > I need a better setup so I can go really high depression (90s would be cool) and also a water injection setup with dye so I can see the atomization pattern. > > I can’t think of any benefit to polishing the intake port of the heads. 90" of water? I like the water injection idea. I put a bit of polish on all the runners mainly for the apperence. That and I don’t see any down side to a little finer finish on an injected engine. --- _[View the full topic](https://forums.speedlife.net/t/attn-domantion/185885)._