blight

i have logn scraped the rx bought a fiero and back to the rx again - so i have been around a bit now. i have a few questions seeing that my 383 is now in the fiero. (fast but handles like semi). So its finally truly time to do the rx7 swap.
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weights if i can get them that would be awsome. i am atempting to do the least damage with the weight of teh v8 vs the rotary- and i don't want to go lsx too much $ to me.

weight of;
a stock rotary from an 88 rx (none-turbo) acc. inculded of course.

302 from a 86- 93 stang with cobra heads (thanks to the exploders with v8s ) all acc. too

and lastly the lt1 from a ta or z28 from the 90's. and again with all the acc.

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Have any of you done a turbo v8 in the fc yet (or any rx at that mater)? i am planing to do so using moates products for tuning. i like moates ALOT cheap good quality and lots of resources.

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how much does the stock rear diff hold to when it comes to tq.?

i have other qs but i think i will start out there.