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Old 08-26-2010, 05:52 PM
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Timing for fresh rebuild 350

Hi guys, this is a great site. I need help setting the best timing on my new 350 thatīs already on my car, I just installed the distributor, intake, carb and itīs running, I installed the distributor putting the n.1 piston on TDC (well putting my thumb on the spark plug hole) I donīt know nothing about timing, I can ask a mechanic to do it but I dont know if this parts changes the curve on the engine:

*Edelbrock cam 2102 (0.420 int./0.442 exh. Duration 278 int./288 exh.)
*Edelbrock performer EPS intake
*Holley 0-1850S 600 CFM Vac sec
*Hooker Headers 2451HKR with 2.25 H-pipe
*MSD ignition 6A, MSD cap with stock HEI coil and stock HEI distributor
*MSD heli core spark wires
*NGK spark plugs with 0.045 gap

PS: Sorry for the long thread

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Old 08-26-2010, 06:25 PM
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Camshaft duration @ 0.050" tappet lift is 204/214. Run 10-12 degrees at the crank, total initial and centrifugal will depend on the chamber design. Older heads may require up to 38 degrees. Modern fast-burn chambers may only require 34. Alter the centrifugal curve to provide whatever total you want to use, all in by 2800. Plug vacuum advance into the intake manifold, not the ported nipple on the front of the carb.
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Old 08-26-2010, 07:09 PM
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Quote:
Originally Posted by techinspector1
Camshaft duration @ 0.050" tappet lift is 204/214. Run 10-12 degrees at the crank, total initial and centrifugal will depend on the chamber design. Older heads may require up to 38 degrees. Modern fast-burn chambers may only require 34. Alter the centrifugal curve to provide whatever total you want to use, all in by 2800. Plug vacuum advance into the intake manifold, not the ported nipple on the front of the carb.
If I recall, manifold vacuum is available on the front of the base plate, under the fuel bowl. The nipple aims to the passenger side. Of course you can plug directly into the intake manifold also.

Ported or timed vacuum is not on the "front" of the carb but on the passenger side of the front metering block.

But maybe that's what you meant.......
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Old 08-27-2010, 05:58 PM
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Thank you guys
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