Re: More power from my LTD
What diff gears are you running? If they're stock 2.7's 2.9's then thats your #1 killer. Go some 3.5's.
Do you have a stock size camshaft? Any other engine mods? Your extractors will make a difference. Are you handy with fitting your own parts?
You could get a small hi-stall converter (ie: 2000+ rpm). $350 + intallation.
Your LTD is a big beast and will require a bit of mumbo to get it hauling. You could go a bigger camshaft and keep your stock valve train (just new lifters).......$250 + gaskits.
A second hand 650/750 holley ($400) and weiand xcelerator manifold ($350) would be next.
393 Tremec TKO 9"