Hp
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Senior Member
Joined: Sep 2000
Posts: 681
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From: Hamilton, NJ
Car: 88 Formula, 04 CTS-V, 06 Commander
Engine: 305 TBI, LS6, 4.7 V-8
Transmission: 5 spd, B&M Short Throw
Hp
My uncle was digging in his books when he came across a "Firebird Redbook" as he called it. After browsing the thing now he is trying to tell me that my 1988 Formula 305 TBI is only putting out 150 HP. Is this possibly correct??? This is his story:
In 88 the 305tbi was putting out 150 HP, and in 89 with slight improvements the 305tbi was putting out 20 more horse totaling 170. Could this be true??? Help please. Any info greatly appreciated.
In 88 the 305tbi was putting out 150 HP, and in 89 with slight improvements the 305tbi was putting out 20 more horse totaling 170. Could this be true??? Help please. Any info greatly appreciated.
Supreme Member
Joined: Sep 2001
Posts: 1,266
Likes: 4
From: Tallahassee, FL. USA
Car: 92 Camaro RS
Engine: 350 Crate Motor
Transmission: Tremec TKO
Axle/Gears: 10 Bolt 3.73
That is correct, 89-92 put out a whopping 170HP!
Mine's since been replaced with a 300HP 350.
-Rich-
Mine's since been replaced with a 300HP 350.
-Rich-
Supreme Member
Joined: Dec 2001
Posts: 2,378
Likes: 1
From: Barboursville, WV
i read that 88 is when they started getting 170 because of the introduction of TBI instead of carb..i read that the TBI bumped 20hp over the carb...also ive read 88's have a roller setup...also what would be the difference between a 88 and 89? the cam?