90 5.0 cutting out under acceleration

ruthlessracing7 · June 7th, 2011, 12:54 AM

i have a 90 lx with a 306 stock heads f303 cam, shorty headers , edelbrock spyder intake , billet fuel rails , adj regulator, 30 lbs inj 75 mm TB / MAF, cold air kit, mallory coil , . ok so when i bought the car it was stock. but i still had this same problem . it cuts out under acceleration. it seems to get better at times. feels like it loses fire for like a millisecond and it does this at different RPMs can anyone please help ?

ryanw · June 7th, 2011, 01:52 AM

run your codes and check your fuel pressure

Iv got to say though that your injectors are to big for your set up unless you got a tune
Also your intake seems a little much as welll.....id get some good after market heads ASAP, then the set up might be okay

ya i think those stock heads are killing you...its a big choke point

ruthlessracing7 · June 7th, 2011, 01:52 PM

i agree about the stock heads. i have a set of victor jr heads that im going to put on im having new valves and seats put in . as far as codes how do i go about checking those we dont dont have a ford dealer around here anymore ?

June 7th, 2011, 12:54 AM	#1
ruthlessracing7 Newbie 1990 mustang lx Join Date: Jun 2011 Location: jesup ,ga Posts: 7 iTrader: 0 reviews	90 5.0 cutting out under acceleration i have a 90 lx with a 306 stock heads f303 cam, shorty headers , edelbrock spyder intake , billet fuel rails , adj regulator, 30 lbs inj 75 mm TB / MAF, cold air kit, mallory coil , . ok so when i bought the car it was stock. but i still had this same problem . it cuts out under acceleration. it seems to get better at times. feels like it loses fire for like a millisecond and it does this at different RPMs can anyone please help ?

June 7th, 2011, 01:52 AM	#2
ryanw I Post Entirely Way Too Much 1991 Ford Mustang GT Join Date: May 2007 Location: San Diego, California Posts: 6,063 iTrader: 0 reviews	run your codes and check your fuel pressure Iv got to say though that your injectors are to big for your set up unless you got a tune Also your intake seems a little much as welll.....id get some good after market heads ASAP, then the set up might be okay ya i think those stock heads are killing you...its a big choke point __________________ DART 331ci stroker, AFR 185 heads, Trick Flow R intake, Accufab 70mm tb, 75mm pro m Maf, 30lb injectors, jba headers, 2 1/2" x pipe flowmaster super 10 mufflers, 255 fuel pump, 3:27 gears

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June 7th, 2011, 01:52 PM	#3
ruthlessracing7 Newbie 1990 mustang lx Join Date: Jun 2011 Location: jesup ,ga Posts: 7 iTrader: 0 reviews	i agree about the stock heads. i have a set of victor jr heads that im going to put on im having new valves and seats put in . as far as codes how do i go about checking those we dont dont have a ford dealer around here anymore ?

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