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Join Date: Dec 2006
Location: Nova Scotia Canada
Re: 396 how much hp?
I don't put much faith in parts catalog or cam companies hp statements. I think a real dyno is the only way to tell. If you read enough header, cam and carb ads, you will pick up 15%-20% with each mod. That means a stock 396/325 can easily make 380-400 hp with just some bolt on mods and a cam change. 400 hp on the street is a lot of real hp. I have a feeling real numbers are more like 330-350. Without a dyno, who really knows.
A guy that has held records in the NHRA and built race motors all his life has a dyno in his local shop. He stressed to me that his dyno numbers are real, not bogus like some dynos put out. I don't know if this is fact, but who knows. He seems to think a lot of shops have dynos that inflate the numbers to make the customer feel good.
I agree 100 % with Matt's statement,vendors advertised HP gains are mostly BS,IMO.I have also heard the same about dyno's and dyno operators.The shop I used does not "fudge" numbers,they give you the real deal.But there is another shop with a dyno a couple of hours away that isnt as honest,and I have heard it said that their dyno will make an extra 50 HP over the first shop.
'86 Monte SS,
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Custom Bullet solid roller,.706, 285/293-255/263 @ .050,110 LSA,UDHarold's lobes.
Isky .904 EZX Roll lifters,
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