Truck manifolds on Dart Sport?

I did a search but didn't find the answer I was looking for. I bought my 360 Dart Sport used recently, and it came with some beat to crap, very low hanging headers. Since I know it can be a pain to install headers with power steering and power brakes, I am considering using factory exhaust manifolds, but obviously want something with better flow than the original LA 360 logs. A local buddy has a set of manifolds that came from a 360 truck (unsure of the year). My question is - are they likely to fit? Also, will they be any better than the stock Dart manifolds were? I'll be driving it on normal streets, no real racing.

Thanks!..
Truck LA 360 manifolds can be made to work on the passenger side, but won't fit the driver's side at all, power or manual.
Magnum manifolds, same deal. Fit the passenger side but not the driver's side with power steering.
I honestly don't know that anything "flows better" than the original (A body) "360 logs" except headers or possibly the Magnum manifolds. The 360 A body manifolds were the same as the later 340 manifolds, which were some of the best Ma Mopar offered. Pricey to find now.
As far as headers go, TTI and Doug's are generally considered the industry standard, but Patriots are pretty good and come in at about half the price of Doug's (same parent company, too, currently under $300).
And if you're concerned about full length tubes hanging too low for you, consider the Hedman Tight Tubes (shorties) that also clear your power steering (just a hair over $400 right now).