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Hi guys I have a 94 sedan deville with a 4.9 pfi in it and I'm looking into boosting my hp. I know the 4.9 doesn't have much support and I'm very limited but I'm wondering if anybody has any ideas? At the moment I'm looking at advancing the timing, a new exhaust, bigger injectors, new ignition system, an allante 4.5 intake manifold, and I've also heard my transmission could handle a 35-75 shot of nitrous. Is there anything else I should look into that you guys know of?

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Welcome.  The 4.9L OHV is a good V8 overall.  You can find my notes on mods I tried with my 1992 STS with 4.9L here:

http://www.caddyinfo.com/92sts.htm

 

Bruce

2016 Cadillac ATS-V gray/black

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