Have to agree 100% with what Steve said..
As for where to get the parts.. I see that you are in Ohio.. There are a TON of TRs in Ohio that are running low 11s and way faster.. I'd start by giving Red Armstrong a call, as he should be able to get you anything you'd need [and tell you what you wont need] and if not will find you someone who can. Vince Janis [in Ohio] Transmission rebuild if you haven't yet done yours, is a good idea if you are doing a 10 sec buildup..
Another vendor who is second to none for awesome service and buying parts is Jack Cotton. I think he is in Massachusetts.
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DTA... don't trust anybody...
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Steve Ruston
1989 Mustang LX Coupe
5 speed, mostly stock w/ small mods... For now anyway

1976 Chev Caprice Classic,
96000 miles, Red, 400 SBC, TH 350, BIG heavy chrome bumpers..
Daily driver, parts chaser, traffic buster & your worst nightmare if you park too close to me at Walmart
1987 Turbo Limited--> Sold Nov 2001