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Old 03-19-2004, 12:00 PM
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How much power and how fast??

Hey everyone i was curious on a engine that i just recently built.. Its a Chevy 350 4 bolt main, been bored .060 over, i have a 214 Chevy cam in it, a edlebrock performer eps intake, accel coil, and wires, a edelbrock performer 600 carb with a k&n air filter, and full length headers with flow masters and a crossover pipe. I put this in a 78 Pontiac fire-bird with a th 350 transmission, and 373 posi rear end. what kind of Hp am i looking at and how fast should this be in the quarter? if any more info on this car is required than please ask..
any feed back would really help,
thanks everyone

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Old 03-19-2004, 12:12 PM
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sounds like a good setup man, you should be happy with it! What's your compression like? I don't know anything about your heads, but assume its btw 8-9 compression with 1.94 heads.. should be around 300 horse or so, potent little ride I'm sure. Again, depending on your setup you could run anywhere from low 16's to high 14's in the 1/4. My guess is low to mid 15's.

K
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Old 03-19-2004, 12:21 PM
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i have no idea what the compression in that motor is i know that i can barley turn it over with a breaker bar on the harmonic balancer bolt... and the heads are stock.. . the motor, well block is out of a 75 pick up truck, and the heads are off my 78 firebird.. i have raced two mustang gt's in it and embarressed both of them but havnt taken it to the track yet. I can only run premium gas in my car with out it pinging.. and if i run the 87 octane it messes up my car for well about 2 weeks.. till i get all the gas out..
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Old 03-19-2004, 12:29 PM
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mustangs tend to run low 15's stock.

You may be into the 14's with those gears.

K
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Old 03-19-2004, 01:30 PM
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thanks
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Old 03-19-2004, 04:47 PM
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heads off of a 78 firebird and a block out of a 75 truck.
i would say your compression is around 8.5.
but i have to disagree with the hp estimates i would say you should have around 270hp at the flywheel.
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Old 03-19-2004, 05:00 PM
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300 is pretty close to 270 man.
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Old 03-19-2004, 05:13 PM
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no your way the hell off!
j/k
i agree completely with your qt times.
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Old 03-22-2004, 07:02 AM
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do you think a motor like mine will hold nos?? my wife told me that she wanted me to make it a 12 sec car and thats the easiest way to make it...
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Old 03-22-2004, 07:53 AM
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Nothing more than the most basic 100-125hp kit. Follow all of the tuning recommendations by the nitrous company. I would recommend using a full throttle switch as well. Have fun!
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Old 03-22-2004, 06:03 PM
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Need to know the gear ratio and are you running posi? What size tires?

Also, my advice would be to run the quarter BEFORE adding nitrous, you need a baseline. Nitrous at a safe level will shave about a second off your quarter time so don't expect a 12 second run unless you are running some REALLY deep gears and are hooking up very tight.

Good luck.
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Old 03-23-2004, 07:47 AM
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i am runnning 3.73 posi in the rear end my tire size is 265/50/15 they are the widest tires that i can put on my car..
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Old 03-23-2004, 09:26 AM
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Sounds like a VERY nice street set up!!!

Just don't expect 12 seconds, a car running mid to high 13's and is very streetable is awesome so don't beat yourself up over just a number.


As far as your wife wanting a 12 second car, just tell her you need to put another $5k into the car and you should be right there, but it won't be much fun to drive on the street then see what she says.
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Old 03-23-2004, 11:33 AM
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thanks everyone for your replies.
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