[rick8750]

It's great that you've chosen a FoxBody 5.0
There's alot of variety out there and it's hard to find one on the lot that looks good and has either a stock engine or one that hasn't been set up wrong by someone who made unlogical performance combinations. I've had 4 mustangs in the last 10 years. 2 sold 1 in therapy and one toy that i still drive weekly. 2 of them were Speed Density and 2 were MassAir. If you go with the 87-88 speed density 5.0 you will have the ability to create alot more RWHP with bolt on mods and you will also be able to change heads and cam down the line when you get serious with only minor computer adjustments. The Fuel system reacts to modification MUCH better on the Speed Density car. BUT when you decide that you want for example, a more aggresive cam and some wild heads or an Edlebrock Victor Manifold with a 100 shot of spray you will need to convert to mass air. It's a 2 hour $200 - $350 job and you might be able to pull the parts from a deceased 5.0 making even cheaper. I've had to stop and open the hood on more than one occassion just to prove that i wasn't spraying my 87 pony. I hope you find a good one!