Heads,intake,TB Question??

[deepsea1969]

Ok, I searched the threads regarding my question but still feel I need to ask. Here is goes.
Over Christmas I added the following to a completley stock 89 GT:
GT40Y303 Heads
FRPP 1.6 ratio RR
Cobra Intake
Mac 70MM TB
3.73 Gears

I must say that there is an extreme difference compared to stock! I love it. However it seems like there might be something missing. There is some white smoke upon deacceleration after getting on it. There isn't any during acceleration but only when I let off the gas. Could I be running lean?? Do I need to upgrade the fuel pump? The stock one is still in there. Any inputs would be greatly appreciated. Thanks.

 

[Daggar]

White smoke is usaully an indication of water/coolant getting into the cumbustion chamber (cylinder). Some amount is to be expected imediatly after changing heads, intake, etc. but should go away quickly. If it persists then I'd say you have a leak somewhere that is allowing coolant in your cylinder. This is not a good thing. If it doesn't go away, you may be looking at replacing your heads gaskets and intake/manifold gaskets yet again. Another area to check would be the coolant lines going to the throttle body spacer. Make sure you're not getting water into your induction system that way before tearing everything apart again. Check your throttle body and spacer gaskets for any leaks as well. If I've missed anything, I'm sure someone will catch it for me. Hope this helps.

 

[deepsea1969]

Thanks, I'll check that out.