Max RPM for 305?
Supreme Member

Joined: Jan 2001
Posts: 7,164
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From: Someone owes me 10,000 posts
Car: 99 Formula
Engine: LS1
Transmission: T56
Axle/Gears: 342
I think the redline is going to be much higher than what your powerband is, so shifting at the redline would be a waste, assuming the motor is stock.
Just look at your tach, where is the redline.
Just look at your tach, where is the redline.
Supreme Member
Joined: Jun 2001
Posts: 3,238
Likes: 4
From: Calgary, Alberta, Republic of Western Canada
Car: 1986 Sport Coupé
Engine: 305-4v
Transmission: 700R4 and TransGo2
No more than 5500 for a stock valve train. It will be hard to get that high anyway, though.
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