Welcome to the best site for these old trucks, Eric.
I think the 49-55.1 trucks are the best of all, but that's just a personal preference. Further, I like the 54 or 55 (1st Series) most because of the windshield being one piece ... again, just personal preference.
I've got a 350/350 setup in my truck, with a Mustang II IFS, headers, mild cam, etc., etc. -- you can check out everything I've done to it ,since I bought it a year and a half ago, via the link below.
Get one while you can!
