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Sluggish on rebuild

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Old May 22, 2009 | 01:50 PM
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From: St. Louis, Missouri
Car: 1989 Firebird Formula
Engine: 383 Stealth Ram
Transmission: 700R4
Axle/Gears: 3.73 9 bolt Posi
Sluggish on rebuild

Hi Everyone,
I recently finished my rebuild and took the car out the other day. It seemed sluggish and didn't want to pull hard like it did prior to the rebuild.

I took the engine out and had the following done...

-cylinders bored .030 over
-connecting rods cleaned/refurbished
-new flat top Speed Pro pistons with coated skirts (about 10:1 compression)
-rotating assembly balanced
-added 2500 rpm Hughes stall converter

Other than these changes, everything in my sig (heads, cam, etc) is the same.

I checked and the TPS sensor is at .60v. No fluid leaks. Base Timing at 8*.

Does anyone have any ideas as to what I can do to fix the sluggish issue?

Thanks!!!
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