Cam suggestions
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Joined: Apr 2010
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From: Des Moines IA
Car: 91 RS, 84 Z28, 85 Iroc-z
Engine: 3.1L, 350 4 bolt, 350 TPI
Transmission: 700R4, 700R4, 700R4
Axle/Gears: 3.23, Unknown, Unknown posi
Cam suggestions
I'm rebuilding my tpi 350 to stock specs but want a performance cam. What's the most lift and duration I can go without having to tune the ecm? What would you recommend?
Joined: Feb 2001
Posts: 8,494
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From: Sophia, NC
Car: 2016 Camaro SS + 1986 Z28
Re: Cam suggestions
There are lots of opinions, but I'm running the ZZ4 cam. Needs springs to allow for the higher lift, but mine runs like champ on the stock tune. Not saying there isn't a little more performance to be had with a tune, but it runs great. Is your Car a 91 z28? If so, you've got speed density, not Mass Air. MUCH more difficult to tweak without retuning. Not sure what your options are if you have speed density.
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Aug 2, 2019 11:12 PM