I'm also about to a 1990 5.0 in a Maverick ('70). I'm trying to stay E.F.I. Are you staying with the 5.0's fuel injection or are you going to carb? What did you have to change (either way)?

I'm assuming you didn't put the headers on when you put the engine in (I've been advised to do so as it makes the header installation much easier). Did you cut out the shock towers for clearance?

One more question then I'll leave you alone. Have you put the C4 in yet? As I understand it, it is MUCH easier to install the headers with the tranny out.

Your feedback is appreciated.

Keep us posted on the progress and good luck,