gene,
wish i could be of more help more, but i saw this very set-up several years ago, at a dragstrip in kentucky. the maverick was powered by a 300/5-speed and it would fly! he easily beat my buddy's nicely built '85 t-bird v8!
i talked to the owner and remember him saying with some basic mechanical and fabrication skills it was not a difficult swap. the dual exhausts on the maverick sure sounded sweet, too!