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Old 10-20-2002, 07:00 AM
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Angry 350 sluggish

I'm not much of the performance kind, but I installed the Edelbrook performaer intake cam and lifter set on my 70 chevy caprice and it's still sluggish when I crack it. I think it still has the factory heads and a 600cfm carter carb., anyone give me any tips?

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Old 10-20-2002, 07:08 AM
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Timing advance mechanisms working properly?
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Old 10-20-2002, 07:14 AM
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yes
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Old 10-20-2002, 07:15 AM
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took out the points dist. and went with stock HEI.
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Old 10-20-2002, 01:20 PM
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Is the stock HEI vacuum advance or electronic? How many miles? Maybe she's just tired. another thing to check is the carb. does it pop or sputter when you accelerate hard.
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Old 10-20-2002, 02:41 PM
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stock HEI is vacuum advance....not sure on the miles...the carb does pop when accelerating hard. Also i think the wires might need replaced because the timing light doesn't cycle continuous.
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Old 10-20-2002, 06:29 PM
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It's a classic sign that somethig is wrong in the HEI. Don't expect much throttle response with that cam. After all it an advertised duration of 308! That's a monster on the street. They sound great though.
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Old 10-21-2002, 12:20 PM
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the 600 cfm is perfect, but the cam is too large for the stock heads to flow proper thru, u may also just have a tired small block, and have your hei ign. redone for performance, and check your timeing
the stock timeing marks NO LONGER APPLY.
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Old 10-21-2002, 02:37 PM
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Another thought is to buy a 2500 RPM stall converter so you can actauly put to use the power of that engine
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Old 10-31-2002, 04:10 PM
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Poping thru the carb can be a lean spot,check the acceleator pump and metering rods, choke linkage not open all the way. Just a few other things to look at.
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Old 11-02-2002, 06:59 PM
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Check those plug wires to make sure they aren't crossed-up. Look at the cheap fixes first, otherwise you may be kicking yourself in the butt later.
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Old 11-02-2002, 07:38 PM
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[quote] After all it an advertised duration of 308! <hr></blockquote>
Where did you get 308?? He said performer not performer rpm cam. The performer cam is not that radical, 204 intake duration and 214 exhaust duration at .050 lift. Intake lift is .420 and exhaust lift is .442. That's milder than the cam in my car and she idles fine. Now the performer rpm cam is a different story but I didn't see rpm in his post.
Hello! Didn't anyone else notice this????

[ November 02, 2002: Message edited by: dmorris1200 ]</p>
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Old 11-02-2002, 07:42 PM
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he doesnt need a 2500 stall the rpm range on a performer cam is idle to 5500 and the avertised duration is 288 not 308 johnsongrass1 the cam with the 308 duration it the Performer RPM cam so it has to be carb, 600 cfm is perfect but i would have gone with an edelbrock performer carb its what is made to work with what you bought the heads are fine that intake and cam are made to run with a mainly stock engine anyway. so on this one i would go with 1BAD80 or 2QUIK its either carb or ignition
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Old 11-02-2002, 07:47 PM
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Hey noslonomo we must have been typing at the same time except I beat ya by four minutes.
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Old 11-02-2002, 08:20 PM
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Gearhead - what's your base timing set at?
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