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are all these specs right for a tuneup on a tpi?

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Old May 24, 2001 | 10:50 PM
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Mkos1980
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From: Macedonia ,OH
Car: Formula
Engine: 6.0 LSX
Transmission: 4L60E
Axle/Gears: 9 Bolt 3:27
are all these specs right for a tuneup on a tpi?
400 RPM in drive
.54 for TPS
6* Timing
43 Gap on plugs with a MSD Box
20HG Vacume pressure
Fuel Pressure?? I have no clue


Thanks 89 350 TPI
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Old May 25, 2001 | 12:25 AM
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400rpm in drive is too low, it should be like 650.
The fuel pressure should read about 44. It varies as everything does in a production car.
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Old May 25, 2001 | 01:11 PM
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Mkos1980
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From: Macedonia ,OH
Car: Formula
Engine: 6.0 LSX
Transmission: 4L60E
Axle/Gears: 9 Bolt 3:27
btt
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Old May 25, 2001 | 03:28 PM
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From: Hayward, CA
Car: 91 camaro
Engine: 383
Transmission: T56
<font face="Verdana, Arial" size="2">400 RPM in drive</font>
Do you mean for adjusting the IAC? If so, I think it's supposed to be at 425-450. Or as low as you can get it to idle without the car dying. Fuel pressure is supposed to be at 42psi stock, but you'll probably see some performance gains if you bump it up to around 48.
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