Problem with the panther chassis is the lack of aftermarket support...not much interest in these cars, so you have to get creative.
I'd suggest taking a peek at Crownvic.net
There's a lot of 4.6 knowledge over there, and I'm sure they'll be able to help you. Good luck!
1989 Ford Crown Victoria Police Interceptor
2bbl Carbureted 351W V8, ported and polished E7TE heads, Edelbrock cam
AOD Transmission with B&M Shift Kit
3.55:1 Positraction Rear Axle
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