installed a stroker engine in a 85 iroc, burn rubber in shop, put it on the street and it picks up speed very slowly, engine is a 350 bored to 420 horse approx. any suggestion would be helpfull

 

Sounds like the Edelbrock RPM kit? I've heard that before. Especially when people use the cam that comes in it.

What is it really?

Nobody is going to be able to tell you where to start if we don't know what it's built out of.

 

sorry, its a edelbrok 850 cfm carb,edelbrok intake, also i put a seethrough fuel filter and noticed after coming back of the street that it is empty and fuel is trickling in, i also replaced the fuel pump with no change

 

Don't use seethrough fuel filters, they're crap. If you want to see if you're getting the right fuel, buy a fuel pressure gauge from the parts store for 20$

 

So, what heads, what cam, what pistons, etc.; which intake? RPM?

Evidently I read your concealed copy of the ad copy correctly maybe?

What's the rest of the car? Exhaust, gears, converter, etc.

 

That's an amazing gift of being able to weed through complete gibberish and find out what he's got. Guessing a '70-'72 truck in another thread was pretty impressive as well.

leredog - You'll notice I have made use of the sidebar below my nickname there, to describe my car. It makes things incredibly easy when I ask a question, people can read my sidebar and see what i've got. I can also attach a signature with more information, if it's useful in the situation. I highly recommend you do this as well.
Your first post was almost a waste of time, almost nothing was described there. Cough up the info!