pachanga 22 454 bbc Idels wont take any Rpm's

[tripledigits]

ok now I need help. yesterday went to the lake.Did a couple of wide open runs. when I went to go to shore.My boat started skipping when I gave it gas.But fine at idle. checked the timing today it was fine. ckecked fuel pump It was fine. wires were ckecked,everything looks good but I cant give it any throttle with out it choking or missing. any help please? 1988 454 big block,RPM Edlebrock intake,quadajet carb.

 

[390x]

ok now I need help. yesterday went to the lake.Did a couple of wide open runs. when I went to go to shore.My boat started skipping when I gave it gas.But fine at idle. checked the timing today it was fine. ckecked fuel pump It was fine. wires were ckecked,everything looks good but I cant give it any throttle with out it choking or missing. any help please? 1988 454 big block,RPM Edlebrock intake,quadajet carb.

My Formula did that when a coil went bad.

 

[Red Horse]

Coil, accelerator pump cup, flat cam, choke stuck, needles out of adjustment, vacuum advance...Check the basics

 

[kevin27]

Being as you have a Quadajunk it's most likelly the carb. Had my fair share of problems when I had carbs. Never want to go back now that i have MPI.

 

[CV-23]

Being as you have a Quadajunk it's most likelly the carb. Had my fair share of problems when I had carbs. Never want to go back now that i have MPI.

MPI is fine but my 350 & 454 run perfect with the factory QuadraJet. It's an easy to work on carb and can get you back to port. MPI's don't limp well.....just sayin, Mike.

 

[CV-23]

ok now I need help. yesterday went to the lake.Did a couple of wide open runs. when I went to go to shore.My boat started skipping when I gave it gas.But fine at idle. checked the timing today it was fine. ckecked fuel pump It was fine. wires were ckecked,everything looks good but I cant give it any throttle with out it choking or missing. any help please? 1988 454 big block,RPM Edlebrock intake,quadajet carb.

Coil is shot! They get weak when they get hot, Mike.

 

[Puma]

I agree; it sounds like the coil to me, that's pretty much spot on what happened when mine failed.

 

[tripledigits]

I replaced the ignition with MSD marine set up ,coil, distributor and ignition box,added a fuel pressure gauge. It runs great now ,thanks for the help.