700R4 manual low and manual 2nd low pressure

[Broken85]

I recently got a 700R4 from my 85 K10 rebuilt. Bolted to a 375hp small block with a sniper.
Transmission is installed and before I moved it an inch, I pressure tested the trans per the guide and dialed in the TV cable. Here are the results;

1. Park/Neutral/Drive/3rd - 85lbs @ 1,000 RPMs
2. Reverse- 140lbs @ 1,000 RPMS
3. 2nd and 1st gear low - 110 @ 1,000 RPMs and at full TV extension

#1 and #2 above are near perfect according to Nicks guide. #3 should be between 160-295 lbs, but I don't think I am going to get close to there with just TV adjustment, and since #1 and #2 are good, I probably should try.

I decided to man-up and take it for a drive, and it is running absolutely perfect from what I can tell. I can barely tell when it shifts it is so smooth, no slipping at all. Is 110 a deal breaker? Is it only a matter of time before it burns up? What would early symptoms look like?

I took it back to the guy who rebuilt it (who will not remove or reinstall it, that **** job is on me so trying to avoid it) he is going to put it on a lift next week and pressure test it himself, but if #1 and #2 are in spec, I don't think there is anything else I can do to improve the 2nd and 1st gear pressures with just TV adjustments. Any simple causes or remedies would be appreciated.

 

[Edelbrock]

Probably a dumb suggestion, but are you sure you have the correct fluid? Not only for the year/make/model/trans type, but also for any upgrades or mods the builder might have done?

 

[Broken85]

It is actually a good question, should have included that. I am using Dexteon VI.

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The tech said standard fluid is fine (not that he is necessarily correct). Heavier clutches were part of the build along with a new valve body and 2nd gear servo. I asked for an itemized parts list so I know what I am dealing with, but I am still waiting for that