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Discussion Starter · #1 · (Edited)
If you don’t mind please give me your best guess for what I should set the timing to:

I am getting ready to set the timing on my 402 Mopar crate motor (specs are below). I was given the below timing suggestions as a starting point:

18 degrees at idle
16 degrees at 3200 (34 degrees total)
12 degrees at 12 vacuum

The motor is in a:
’68 Dart
A833 four speed
4:10 rear gear
P225/55/R18 rear tires on 18 inch wheels

The Motor:
Holley 750
Headers are 2 inches I think
4.00" bore/4.00" stroke
9.0:1 compression ratio
Big valve Magnum R/T Cylinder Heads
2.02" intake and 1.625" Exhaust Valves
Heavy-duty Valve Springs
288°/292° duration, 0.501"/0.513" lift Hydraulic Roller Camshaft

Single plane, M1 4-bbl Aluminum Intake Manifold

Double Roller Timing Chain and Sprockets
8-quart center sump street/strip Oil Pan

MSD Blaster 2 coil
MSD E-CURVE distributer

If you would like to see a couple of videos of the car see the below links.

Dart Photos
Videos are here


Thank you for your time and help.

Bill
 

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that sounds pretty accurate on the timing. should be a really nice streetable set up as described.

what are we supposed to be guessing? looks pretty sorted out.
 

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Discussion Starter · #3 ·
that sounds pretty accurate on the timing. should be a really nice streetable set up as described.

what are we supposed to be guessing? looks pretty sorted out.
I was just asking for you guys to give me your best thoughts on the timing settings. Educated guessing from your experience from you guys 😊
 

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If you don’t mind please give me your best guess for what I should set the timing to:

I am getting ready to set the timing on my 402 Mopar crate motor (specs are below). I was given the below timing suggestions as a starting point:

18 degrees at idle
16 degrees at 3200 (34 degrees total)
12 degrees at 12 vacuum

The motor is in a:
’68 Dart
A833 four speed
4:10 rear gear
P225/55/R18 rear tires on 18 inch wheels

The Motor:
Holley 750
Headers are 2 inches I think
4.00" bore/4.00" stroke
9.0:1 compression ratio
Big valve Magnum R/T Cylinder Heads
2.02" intake and 1.625" Exhaust Valves
Heavy-duty Valve Springs
288°/292° duration, 0.501"/0.513" lift Hydraulic Roller Camshaft

Single plane, M1 4-bbl Aluminum Intake Manifold

Double Roller Timing Chain and Sprockets
8-quart center sump street/strip Oil Pan

MSD Blaster 2 coil
MSD E-CURVE distributer

If you would like to see a couple of videos of the car see the below links.

Dart Photos
Videos are here


Thank you for your time and help.

Bill
My motor is Almost identicsl, set the initial to the starter having difficulty, back off 2 degrees, OR set it at what you propose , increase it to slight detonation at wide open throttle, back off initial 2 degrees OR take it to the track on test and tune night. Mine really Likes 33-34 total
 

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Discussion Starter · #6 ·
My motor is Almost identicsl, set the initial to the starter having difficulty, back off 2 degrees, OR set it at what you propose , increase it to slight detonation at wide open throttle, back off initial 2 degrees OR take it to the track on test and tune night. Mine really Likes 33-34 total
Thank you!!
 

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Old mechanic told me to use 2 guys, one rotate the distributor while the other 2 foot the brake and throttle. Add timing till it rattles then back off slightly. Told me to throw the damn timing light in the trash. I have never done so but, had other old guys back him up, when a conversation came up.
 
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