Car Garage - look at my profile. They are an excellent shop, and Rob and his crew will go out of their way for you. Set your expectations high, and they will still be exceeded. The prices quoted by both shops are very fair. I don't think you need a tranny upgrade for your auto given those mods. 95% of people with mods and autos run the stock auto without issue. If you are building a drag car that'll make 100s of passes a year, that's a different story.
My car is on their website in the 300zx gallery as well if you're interested.
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____________________________________________________ We face formidable challenges. I am not afraid of them. I am prepared for them.