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Old 01-25-2011, 12:45 AM
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305 Turbo-Fire 240hp
 
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lets race

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Old 01-25-2011, 12:49 AM
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I'm not gonna lie you would smoke me!! lol
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Old 01-25-2011, 01:22 AM
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305 Turbo-Fire 240hp
 
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we'll get us a 305 car club lol
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Old 01-25-2011, 06:11 AM
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Quote:
Originally Posted by jmabrao
mine cruises at about 2500 rpm on the freeway. It's a 700r4 Tranny, I kinda don't want to tear into the engine again I had never done a cam swap before so I was about to explode with anger lol
Freeing up the exhaust is critical-
Get as set of long tube headers and dual exhaust on it w/low restriction turbo-style mufflers. This will be reused w/any other SBC engine you may choose to run in the future- Vortec included.

Freeing up the exhaust like that WILL give you more of an aggressive idle, and you'll be able to hear that overlap.
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Old 01-25-2011, 06:17 AM
How fast is fast enough?
 
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Exhaust is extra critical on that cam because of the single pattern and tight LSA. I'd get some 1 5/8" long tube headers and then see how you like it. If that's still not enough go to a single 3" exhaust. You will notice a big power increase when you free up the exhaust and retune it. I wouldn't be surprised to see 30hp.
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Old 01-25-2011, 08:09 PM
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I would think with the breathing freed up it should idle with a great sound. Here's a clip with the same cam in a basically stock Goodwrench 350.

http://www.youtube.com/watch?v=sDEth...eature=feedlik
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Old 01-25-2011, 08:23 PM
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305

If your compression is under the mid 9"s even with that 106 lsa you won't sound like you have a lot of overlap and sure will lose bottom end a real vacumn killer.
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