locked timing pro's and con's

[redfox]

on a street car

[weeloGT]

From what I remember locking it made it more consistent at the track and allowed for more low end power on track only cars. However for an everyday driver it makes it idle a little rougher since it's advance so much and also kills gas mileage. One more thing is sometimes it makes it a bit harder to start, esp when it's a bit cold out.
If your running a msd dizzy then usually they come with different springs. The lighter ones allow for the car to pull full timing at a lower rpm. So that way you still have the driveablilty down low and more power when you are at the track. There's more to it then just that but it's been a while since I have messed with this kind of stuff. I'm sure mike will step in and clear up what I'm saying. Hopefully this helps a little

[hammerhead2]

It is not something I would do on a commonly street driven car typically but if its a track only car its not a big deal.

[weeloGT]

Agree! Like i said, just swap the springs out to have the total timing to come in at a lower rpm. You'll be happy with the results and the bit more mid range you'll pick up

[gator72007]

I have my timing locked at 34, with no problems starting.
My idle smoothed out also.

Its just something you will have to try and see if your car benefits from it.