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Old 06-13-2003, 10:40 PM   #1
messed up c-10
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What do you guys think?

Here is a plan for my engine buildup. It looks like it will be a solid and not to costly setup to go with.
355 c.i.d.

Vortec heads with 2.00/1.60 valves

9.4 CR

750 cfm edelbrock carb.

Dual-Plane intake manifold

Flowtech Afterburner Headers

and a Comp Cams 268XE hydralic cam

TCI TH700R4

Posi and 3.42 gears.
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Last edited by messed up c-10; 06-14-2003 at 04:56 PM.
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Old 06-14-2003, 01:24 PM   #2
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Why Vortec heads? Why not some Edelbrock RPM's or Trick flow or some aftermarket?
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Old 06-14-2003, 01:39 PM   #3
messed up c-10
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they are considerably cheaper and should get a little better gas mileage.
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89 S-10 Blazer with a 4.3L
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Here are some links to some good music.
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Old 06-14-2003, 04:43 PM   #4
swervin ervin
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You're worried about gas mileage and planning on a Eddy 750 carb, TH400 and 3.73 gears, not to mention the XE268 cam??

Can we say, "goodbye gas mileage"?
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Old 06-14-2003, 04:52 PM   #5
messed up c-10
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No after going over to the Engine and drivetrain forum I'm going to go with a 700R4 instead of the TH-400. 3.42 not 3.73. And the cam... well the engine will get better mileage than it does now with the 305.
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Old 06-14-2003, 08:00 PM   #6
swervin ervin
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Well, now we are talking.

If you are going with a 700R4, stick with 3.73's. This is my combo and it works great. I also have the Compcams XE268 and love it.
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Old 06-14-2003, 10:04 PM   #7
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I don't think you will gain much by installing larger valves in the vortecs, unless you are referring to the fast burn heads.
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Old 06-15-2003, 12:28 AM   #8
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No trust me, he knows whats up with vortec heads. I gave him like two pages of stuff including a full write up by gary at GMPP on the 2 year study GM did with tons of sets of vortecs. Besides, stock vortecs flow better then edelbrock performer or RPM heads.

I agree with mike, keep the 3.73's with the 700R4. This is a great combo. It will take 87 octane all day long.
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Old 06-15-2003, 12:30 AM   #9
sbc350gearhead
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Quote:
Originally posted by Tom
No trust me, he knows whats up with vortec heads. I gave him like two pages of stuff including a full write up by gary at GMPP on the 2 year study GM did with tons of sets of vortecs. Besides, stock vortecs flow better then edelbrock performer or RPM heads.

I agree with mike, keep the 3.73's with the 700R4. This is a great combo. It will take 87 octane all day long.

So are the Fastburn heads better....same design only bigger?

In fact....how can I look at the info on the vortecs?
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Old 06-15-2003, 12:51 AM   #10
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Do you think you could go with a smaller carb and get better mileage?? You could get away with a 600 and lose only a few hp but save alot of gas there! Just my .02 thats worth what you paid for it!!
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Old 06-15-2003, 01:35 AM   #11
messed up c-10
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Quote:
Originally posted by sbc350gearhead



So are the Fastburn heads better....same design only bigger?

In fact....how can I look at the info on the vortecs?
Check your PM box.
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89 S-10 Blazer with a 4.3L
96 Ford Crown Vic P71 4.6L V8. This car rocks.
Here are some links to some good music.
Jack Johnson
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Old 06-15-2003, 01:50 AM   #12
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Thanks for the info, C-10
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Old 06-15-2003, 05:14 PM   #13
Tom
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sharing all my vortec info huh? I see how it is....

LOL j/k

Fastburns are better heads if you need them. But they have a 210cc intake port. Thats huge for a mild 350. If you can get the airflow you need to make the power your looking for using a smaller intake port like the vortecs 170cc, then you will be MUCH happier with the motor.
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-02 Suburban 4x4: leveled front
-CBR600F4i, CBR600RR, CBR1000RR, and standup skis
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