I have a 87 5.0 speed density car.
At start up the car runs fine...then when nominal temp at full throttle at 4000-5500 rpm the exhaust is popping and lose power at every pop.
the car has minor mods...exhaust..throttle body...fuel regulator..msd coil.. thats it for engine..
no computer codes.....
spark gap is at 0.050-0.051
timing is at 11 with an aod....any less more popping and any more pinging...
fuel pressure set from 40 to 46 w/out vacuum same amount of popping...
have newer plugs...wires...cap and rotor...still same....
tps is good....
like I said car runs great before car is completely warmed up
ask any questions
let me know what you think..
At start up the car runs fine...then when nominal temp at full throttle at 4000-5500 rpm the exhaust is popping and lose power at every pop.
the car has minor mods...exhaust..throttle body...fuel regulator..msd coil.. thats it for engine..
no computer codes.....
spark gap is at 0.050-0.051
timing is at 11 with an aod....any less more popping and any more pinging...
fuel pressure set from 40 to 46 w/out vacuum same amount of popping...
have newer plugs...wires...cap and rotor...still same....
tps is good....
like I said car runs great before car is completely warmed up
ask any questions
let me know what you think..