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horsepower estimation

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Old 11-09-2012, 01:20 AM
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horsepower estimation
Hi I have a 390 wit a 1974 block and heads,stock butterfly pistons,bored .60 over,mild hydraulic rv cam,long tube headers,edelbrock performer intake manifold,and factory adjustable rockers....does anyone know roughly how much horsepower I will be pushing?
 
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Old 11-09-2012, 02:25 AM
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275 or so net is my wag.
 
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Old 11-09-2012, 08:52 AM
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give me exact specs and i'll run it on Desktop Dyno 5
 
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horsepower rating of 390
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