Just keep the stock parts if you are worried about value.
QUOTE]
Thanks for that...
I am looking to balance the value issue with performance potential. I do not plan to ever sell really- I just do not want to 'ruin' the car if it is a huge issue. It is COMPLETELY stock right now, down to all original glass. That is why I am trying to figure out how much "better" the 340 (or 360) is right off, and then pursue what I decide.
