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Which is correct?

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Old Mar 22, 2007 | 01:43 PM
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Default Which is correct?

Fast intake tq. specs. I had a pic of a manual saying 50in max (this was a pic directly off a fast manual) but the manual directly off the website says 89in max. Which is correct?
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Old Mar 22, 2007 | 02:51 PM
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I used 89 in-lbs and didn't have any problems. Make sure you do it in a two pass fashion. First pass is 45 in-lbs.

That was taken directly from the FAST instructions I used.
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Old Mar 22, 2007 | 03:17 PM
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Yea i think that is what i am going to use. I have already ran the car twice with only 50in.lbs. The car is supercharged also so it might be better to do 89. I had to take the intake off the car because i was told at the tune shop it had a vaccum leak and he could not tune it properly. That is why i had to take it off. What do yall think the 50in.lb. was for?
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Old Mar 22, 2007 | 03:53 PM
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my factory gm service manual says 44 in-lb first pass and 89 in-lb final pass and should be the same for the fast intake.
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