how much hp gain with large mouth runners?
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Joined: Dec 2004
Posts: 1,153
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From: kissimmee fl
Car: 88 iroc-z z-28
Engine: 383
Transmission: th400
Axle/Gears: 3.42
how much hp gain with large mouth runners?
I was just curious. Anyone know of a round number. The rest of the intake is stock for now.
Joined: Jul 1999
Posts: 10,950
Likes: 26
From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
Re: how much hp gain with large mouth runners?
On my modified engine I gained 4 RWHP and 10 RWTQ when I added TPIS large tube runners.
Thread Starter
Supreme Member
iTrader: (8)
Joined: Dec 2004
Posts: 1,153
Likes: 0
From: kissimmee fl
Car: 88 iroc-z z-28
Engine: 383
Transmission: th400
Axle/Gears: 3.42
Re: how much hp gain with large mouth runners?
lol okay. Thank God they came with the car when i bought them and I didnt pay for them
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