hello I have a 1994 f150 4X4 AUTO with a 5.8 or a 351w motor. which computer is the best to work on the 5.8 I want to get the 5.8 tuned for better performence and gas milage. I know some one has done it and had good results and others have had problems. I would like to learn from your mistakes and your sucess. thanks

 

you can tune the stock ECM with the QuarterHorse but only so much...

if you want mild to wild you'll need a stand-alone ECM...like the F.A.S.T unit

 

Thanks for the information I will check with a local shop to see if they can help me this way. not looking to do naything but make sure it is running to the best it can. dont need a hot rode truck I have a 1997 Saleen speadster for that