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Old 03-14-2012, 01:40 PM   #4
GMR-PERFORMANCE
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Join Date: Aug 2010
Location: Keller TX
Posts: 836
Re: Help Me Pick New Heads for 383 Please

I ran that same unit on my old 383, I had 10.5 comp and a flat tappet cam.. Just a bit bigger. Head flow is one thing but how it works as a kit is another.. Myself would say have the engine dynoed and then make the choice. Like I siad for the street a engine that makes big tq right out the hole is a ton of fun.. Hp motors need a manual trans and good gears or a auto will need good gears and a loose convertor to have a nice feel. If a engine does not really come on until 3500+ hwy gears are going to leave you feeling like the engine is a dog for normal use..

Street strip is a always a give and take deal.. If the truck is a 80% street deal then build it for that. Gearing will really help make a engine snappy if the set up is a bit sluggish down low. But the hwy deal comes into play at that point unless you have a OD trans
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