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| These are pages from a 91 Popular Hot Rodding magazine
putting the FIRST® up against other manifolds incl. TPI's Mini Ram and
ASM manifold. This test comparison was to see which intakes could
achieve higher torque numbers . This is not a
horsepower comparison. This engine was designed to
produce torque and was not built to achieve high
horsepower numbers. Remember when reading these articles, that the
electronics that are being used were just developed at
that time and
there are far more superior electronics that will allow
these manifolds to produce a lot larger numbers now. These articles are
just to help give you an idea of some of the
potential this manifold has. This manifold has been able
to support in excess of 650 hp on numerous applications.
So along with he great torque numbers that this manifold
can generate, it has the ability to move
large volumes of air to generate high horse power
numbers on specific applications. |
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Here is a turn key version of a 383 Stroker motor
available through Precision Auto Machine, 2522 S.
Chancery St., McMinnville, TN 37110 (931) 815-3260
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Installation Manual
Click on above picture
for manual
Here is the
procedure for the IAC Setting.
NOTE (IAC) fast idle
valve will need to be set to the idle plate to obtain
proper idle correction. See procedure below.
1.
Turn ignition on
2.
Jump A&B on ALDL
3.
Wait 1 minute until IAC seats
4.
Unplug IAC
5.
Turn off key
6.
Unplug jumper
7.
Start up & set idle
8.
Plug in IAC
9.
Turn off ignition wait 15 seconds
Start & idle should be set
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| Take
Note: When using the Fastburn heads, dry fit the base
first before bolting it on to make sure that you do not
have to shave the edges. |
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Change that carb to mpfi tpi
style
Great mpg w/Awesome power & torque |
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Click On
Figure Links
For Larger Image
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Here are some measurements that you
might find helpful when determining clearance issues for your vehicle.
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Figure 7 |
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If you use a large cap HEI distributor, it will
be a very snug fit. To help with timing adjustments, just remove some of
the casting (figure 4). This will give you more adjustment.
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Figure 4 |
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| One common problem is that
people have been known to remove the diversion plate (figure 1) for
reasons unknown. When this is done, it opens a large vacuum leak at
the base of the throttlebody (figure2) which will cause extreme tuning
and running problems. The fix is (figure3) reinstall the diversion
plate. If lost, contact us and we will sell replacements.
Proper assembly of throttlebody with diversion plate in place to
plenum (figure 5).
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"THIS TOOL IS A
MUST HAVE FOR INSTALLING THE LOWER RUNNER BOLTS ,IT MAKES LIFE A WHOLE LOT
EASIER! IT IS A 3/16" LONG WOBBLE ALLEN SOCKET."
Also remember, it is much easier with the valve
covers removed.
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All Of Our Products Are American Made