1995_maro_z

iTrader: (1)

I am considering buying a ‘99 SS from a seller that doesn’t know the details of the build of the car. The only reason I’m considering it is because it’s a really clean car with 54k miles for a very low price, and it runs fine now. The info that I am being given is that it has an aftermarket cam and milled 243 heads and *supposedly* made 490whp when the previous owner had it tuned. This was through the stock clutch and 10 bolt. I plan on addressing both of those. That said:

1.) Is this just a terrible idea in the first place?

2.) Would I be able to have it tuned without knowing the specifics of the cam specs or the heads (I’m assuming they had to have been ported too, and even then I’m skeptical of 490...)?

My plan is to buy it and pretty much take it straight to a trusted tuner that I know to ensure everything is in order with the tune and see what it actually makes. Any and all input is appreciated. TIA

Spamfritter

iTrader: (1)

Yes, you can have the car tuned without knowing all the specifications of the car. They tune based on what their data logs show.

1995_maro_z

iTrader: (1)

Thats great news! As long as everything checks out I’ll probably get it then. It’s not my first (or second or third lol) rodeo with an fbody, but it is with any internal engine mods, so I was a little nervous about not having the details.

VandykeT/A

Knowing the cam just gives the tuner a better idea of what has to be done. Timing, idle rpm, etc.

LilJayV10

iTrader: (39)

cam specs are irrelevant.

the car is going to want what it wants..

BCNUL8R

iTrader: (2)

^^^This...the only time I can think of that cam specs would be needed would be a mail order tune which is basically an educated guess at what the engine will want. Dyno or tune or street tune and a tuner will know what it wants regardless of the cam specs.

LilJayV10

iTrader: (39)

For a mail order, base start up tune, I can agree with that.

Injector data is the most important thing.

Cammed mail order tunes....I'm not even going to talk about that.

BCNUL8R

iTrader: (2)

LOL...I agree, but some people do it I guess.