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Old 05-27-2012, 05:15 PM
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Timing a non-stock 350

When timing a chevy 350 that is not stock (aftermarket cam, carb...), what is the best way to determine what your timing should be at? Is it best to set the timing, and then tune the carb, or vice versa? Is there just a set timing, or standard that all small block chevy's work on?

I ask because the engine is running rich, the carb loads up when sitting at the light, and sputters on takeoff (unless I baby it). It also smokes a little when idling. I assume my timing is off, and while the holley 750 is new, it may need to be tuned. Any info is appreciated

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Old 05-27-2012, 06:43 PM
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Here ya go:
sbc 350, .060 over
speed pro cast flat top pistons
63cc double hump heads (not the 2.02)
edelbrock dual plane intake
Holley 750 vac sec
lunati barebones cam #10001lk
Cam specs:
1500-5,500
Intake Duration at 050 inch Lift 214
Exhaust Duration at 050 inch Lift 224
Duration at 050 inch Lift 214 int./224 exh.
Advertised Intake Duration 280
Advertised Exhaust Duration 290
Advertised Duration 280 int./290 exh.
Intake Valve Lift with Factory Rocker Arm Ratio 0.443 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio 0.465 in.
Valve Lift with Factory Rocker Arm Ratio 0.443 int./0.465 exh.

Headers, 2.5" exhaust pipes with flowmaster 40's
Stock gears in the back
Transmission:
TCI streetfighter turbo 350, Jegs 2300-2700 stall conv

I'm also using a hei distributor with an accell super coil, 8.5mm wires and ac delco plugs. I'm not scared to change things, I just really want my engine to be dialed in. I appreciate the help
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Old 05-30-2012, 11:08 AM
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Thanks for the info, I will use this
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