Picked up an 88 5.0 vert AOD, doing paint and body right now be will be tackleing the motor when I'm done. Motor has 120K runs good has some crappy CAI, BBK shorty headers, H pipe, 2.5 Flomaster, 3.73 gear & 1.5 inch drop. I plan to delete the smog pump, whats really next on a budget? Throttle body? or is it really considering heads? I dont really have the $$ for that right now. If I decide on the heads do I need to do rails/ injectors with my current set up?? Thanks!