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looking for a little more from 396
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kjpsap
New User
| Posts: 2
| Joined: 08/08
Posted: 08/20/08
02:40 PM
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I recently purchase a 1967 chevelle SS 396. 325hp, headers, flow masters, edlebrock performer manifold, edlebrock 600 cfm carb, mild cam. I would like a few more cheap horses. Would a 750cfm carb be worth the money? Also need to know at what rpm's to shift a big block 396 when racing. I'm not a serious racer just for fun.
Thanks
the new guy
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canted
Enthusiast
| Posts: 335
| Joined: 02/08
Posted: 08/20/08
05:09 PM
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What heads are on it and what are the cam specs?
Jim
70 El Camino
461 solid, m20,
pics in readers rides
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kjpsap
New User
| Posts: 2
| Joined: 08/08
Posted: 08/20/08
06:10 PM
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The engine is a 69 model. Guessing heads are stock, can hear the cam, and my hearing isn't great ha. I'm just out to have fun
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55Guy
Guru
| Posts: 751
| Joined: 08/07
Posted: 08/21/08
06:27 AM
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If it's a 325 HP motor, it's got oval port heads.
The carb isn't gonna make that much of a difference. With the way the motor is now, you're cheapest and quickest horsepower gain is gonna be bolting on a set of longer ratio roller rocker arms. This will make the motor act like it's got a bigger cam. I'd also upgrade the valvesprings and pushrods to handle the extra lift.
Another good, quick, and relatively cheap upgrade would be an aftermarket ignition system.
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zman123
User
| Posts: 144
| Joined: 06/08
Posted: 08/06/09
05:45 AM
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And a trip to a dyno, it's worth the money. If the operator knows his business (most do) he will get you some extra just from tuning.
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Posted: 08/06/09
06:00 AM
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Put a 100 shot on and do some dyno tuning.
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