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Old 10-08-2006, 07:03 PM
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William
 
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need to kno how much horsepower i have

well i have a 350 bored 30 over trw 4 valve reliefs pistons a lunati 228/231 duration 489/504 lift a victor junior single plain intake holly 750 dual line 461 double hump heads 2.02 1.60 valves a 3 angle valve job and headers

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Old 10-08-2006, 07:30 PM
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9.5 to 1 compression, small tube headers with mufflers, hyd cam with 110 lobe sep and 106 centerline I came up with 410 hp and 404 trq at 6000 and 4500 rpm respectively.

Mike
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Old 10-08-2006, 09:41 PM
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William
 
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how may mpg will i get amd i forgot to mention that my crank and rods and pistons have been balanced
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Old 10-09-2006, 07:53 AM
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You got a leaky spark tube...
 
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The only way to know for sure is do two things:

1) Take the engine to a dyno and run it there

2) Determing gas mileage by installing it in the car and driving it. You may get 12 mpg while driving it while somebody else may only get 10 (or whatever the mileage turns out to be)
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Old 10-09-2006, 11:44 AM
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If you look at combos 66 and 72 on the site below that should give you an idea of the power for your motor. 66 is quite a bit different than yours, but I think your motor should be between these somewhere. I would say closer to 72 though. Based on these, I would guess yours to be around 350 hp. For mpg, I can only tell you what my car got. I had a 1972 ventura,(same as a nova) with a 355, vortec heads, 224 230 @.050 .477 .480 lift cam and a 650 carb. With a 700r4 in overdrive on the interstate at 75 mph at around 3000 RPM with a 3.90 rear gear, I got around 17 mpg.

http://www.ryanscarpage.50megs.com/combos9.html

Adam
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Old 10-09-2006, 03:29 PM
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William
 
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well how many rpm's will i be able to turn it cause im goina drag race it a lil bit
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Old 10-09-2006, 03:35 PM
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1.21 giga-watts???!!!!
 
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geez, how about a please or thank you or any semblance of manners? Better yet, do a search of the knowledge base on this site!

Introduce yourself, list your car's and engine specs including rear gears, converter stall speed, etc. Depends on your valve springs how high you can rev it. Old, new? Make? Get the point? You live in TN, call Comp Cams, they should be able to answer your questions!
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Old 10-09-2006, 05:49 PM
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How far you "could" rev it and how far you should rev it are two different things. Assuming your valve springs can support the RPM, the motor should have no problem as far as strength goes reving it to 6000 RPM. On the other hand, based on the motors on the site above, your motor will probably make max power around 5200-5400 RPM, That being the case, there isnt really any reason to take it too far above 5500 RPM. It will just start to loose hp after that.

Adam
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Old 10-09-2006, 08:04 PM
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Sry i havent said thank you to any of u all but i just wanted to get done with all the questions before i said anything and u all have been pretty helpful
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