RX-7 newbie =]
 

i've got a few questions about fluids and such to use =] i've got a 1887 NA rx7, bone stock.

what gear oil should i use?

motor oil? (i live in wyoming where temp changes hourly)

also i've read in the FAQ about the ~3800 rpm hesitation but i was wondering if the grounding issue could be the reason mine does it only when it's hot.. when she's cold(ish) she runs beautifully and pulls nicely through the entire rpm range.

also wanted to hear some opinions on exhaust systems to buy =] as my current system has a clogged CAT and nice exhaust leak right before it.. so uhh she sounds like crap XD i've been looking at the racingbeat NA system while using the extensions and stock mufflers. would it be more worth it to spend the extra coin and just go with the racingbeat mufflers as well.

another question i have to ask is where could i find a t2? i'm looking to do the swap with my car but don't really have an idea where to look for motors to buy(except jhot)