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  #1  
Old 09-21-2012, 07:47 PM
builtbychevy builtbychevy is offline
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Thumbs up advance kind of advance curve expected

new 383 sbc 10.3:1 91 ron 160* water thermo stat 180* oil temps. ported dart heads 4500# truck 4.11 ring ratio
cam has .566lift in .543 lift ex, 243 249 duration, 108* lobe sep
manual trans
has htd pulleys and total seal rings with coated pistons
rings are gapped for 250 shot but not squeezing right now

Right now I have an 6530 box w 85551 dizzy and 8223 coil.

what springs and bushings would you recommend?
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Old 09-22-2012, 04:52 AM
Gaz64 Gaz64 is offline
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Lock the dizzy out and use the 6530 program.

20 at idle, 32-35 at 3500, tune from there.
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Old 09-24-2012, 08:43 AM
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msdtech1955 msdtech1955 is offline
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call the cam manufacture and ask what is the suggested
idle-total timing for that motor.
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Old 09-30-2012, 12:06 PM
builtbychevy builtbychevy is offline
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Comp Cams Says: 12-16 @ 1450-1500 rpm
32-38 @ 2800-3000 rpm
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Old 10-01-2012, 08:14 AM
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msdtech1955 msdtech1955 is offline
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what springs and bushings would you recommend?

silver bushing ,with the light silver springs.

Last edited by msdtech1955; 10-02-2012 at 06:44 AM.
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Old 10-02-2012, 01:40 AM
Gaz64 Gaz64 is offline
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Quote:
Originally Posted by builtbychevy View Post
new 383 sbc 10.3:1 91 ron 160* water thermo stat 180* oil temps. ported dart heads 4500# truck 4.11 ring ratio
cam has .566lift in .543 lift ex, 243 249 duration, 108* lobe sep
manual trans
has htd pulleys and total seal rings with coated pistons
rings are gapped for 250 shot but not squeezing right now

Right now I have an 6530 box w 85551 dizzy and 8223 coil.

what springs and bushings would you recommend?
Springs and bushing? The 6530 is programmable.

Note below.

Quote:
Originally Posted by Gaz64 View Post
Lock the dizzy out and use the 6530 program.

20 at idle, 32-35 at 3500, tune from there.
__________________
Regards

Gary
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