More timing, remove plate. How much boost/smoke?

 

Right now it will build about 55-57lbs of boost, it smokes quite a bit but not like it did before i put the 4k springs in it

 

Tuning is one of those things you'll just have to play with every engine is a little bit different. How is your afc set?

 

You can probably hit 600hp with some tuning. But, a little more air would make it easier, bigger injectors would help too. A stock turbo over the 66 wouldn't work very well for someone looking for +600hp.

I just re-read your sig, what are you running for a fuel pump? If you still have the stock one, you need more fuel pressure!

 

I have a 200gph airdog II system on it. Thanks for all the input!!

 

sell your 66, get an s475, and run that under your stocker, use the extra money from selling the 66 towards the piping and whatever.

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Or sell the stocker, and get an s480 to run under the 66

That'll get you to 600hp

 

Twins are for wussies.

 

 

you don't need twins to hit 600 hp

 

what do you reommend 94 12v?