great Panther platform site to check out would be www.GrandMarq.Net
that site is great for the 79-91 Panthers and has a few experienced members tha are good with the 4.6L modular engines. thought i would relay the info if you needed a quick answer for help. my screen name here is same as over on www.GrandMarq.Net (GMN) or as i learned from a different Panther site as them calling it the darkside