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We are at about the same elevation so you should be pretty close except for the P-2 NJ. So far every 250/350 I've done that mod to I've ended up with P-0 NJs. Even on my 350 with big bodied VM30s and other not so mild mods i use P-0s in those carbs too.

  that's weird, that works for me

I have gotten sidetracked to deadend placeholders when keying in 2strokeworld.net since the beginning.

I have to follow a certain link or I get sidetracked.

What if you do 2strokeworld.net/forum

I haven't seen this issue and I've been on and off the site many times each day (laptop & phone). Thanks for the alert.

Same here.

I might be a bit predejiced when it comes to TZ looking builds but that thing is awful. The tank and seat are all wrong, and Like Russ said, the shocks are too short, it sits all wrong. There's a few nice parts on it but wayyyyyyy overpriced. I'd say by about 5k too much.

You'd be better off just buying a TZ top end and collecting all of your own parts and start from the ground up.

Yes, an extrusion

DG heads. Scott Clough did mine.

It's like anything else..........if everything was done right it should work. You have something wrong. There just isn't that much to it. One way to make sure the bearings and seals are all the way in is to find some washers that are close the the same OD as the seals and bearings. Then a piece of 16mm all thread and a couple of nuts. Put one washer on each side (where the seals are) slide the all thread thru and put a nut on each side. Hold one nut with a wrench while you tighten the other with a wrench. You will be able to tell if everything was seated properly. If something wasn't seated you will feel some movement. Also make sure the spacer is in the middle of hub between the bearings.

Are the seals seated all the way? If not that will cause drag too.

Show some pics of all of your spacers, speedo drive, etc.

I would go with your third option since you will already be machining on the heads anyway. My heads are done that way and it works great.

trick stuff 

I see he lowered the price of the bike and the parts lot and also added some pics of an actual TZ (except for the bottom end looks like RD).

This is my Hot rod the day I put it away last fall. There is a build thread on the old forum, I have no intentions of doing another. But heres a little update. No major changes planned except for new carbs, I went from 34mm straight bore lectrons to 38mm High velocity lectrons. (See pic) The idea is that they will still work like 34s down low but should let it breath better up high like big carbs do. No other changes except for a top end freshen up with new OEM Yamaha TZ750 pistons, wiseco rings, and new wrist pins and bearings. The reason for new pistons already is because when I built the motor it was suggested to start with used pistons so that's what I did.