stock fuel rails can hold up to how much HP

[Black70Fastback]

they are stock 2v 4.6 rails. actually came out of a crown vic. what kind of horse power limitations do they have?

 

[myponyrocks]

I'm very interested in this as well, but I'm thinking were safe with most or all bolt ons

 

[MyEarsHurt]

Good question....I dont have an answer though....I am sure someone will

 

[Black70Fastback]

well ive got these rails on a DIY fuel injection conversion on my 351 cleveland. im expecting alteast 450 maybe 500 horse at the fly n/a and want to put dry nitrous on top of that. probably no more than 150.

i just wonder if i should get aftermarket and where?