gasforblood

I have a 87 f150 5.0 with a 94 motor it idels high drops down and goes back up also when giving more than half throttle bogs like its drowning or starving for air I have put a new iac tps and map sensor air filter new cap and button hotter wires and plugs what else can cause the problems also goin to check fuel pressure but it has a new fuel pump

Ford 4x4

check codes

transmaster

Check the injectors. If they are dribbling your truck will run just this way.

Warlockk

Codes x2