347 stroker timing

A

Alaska5.0

Founding Member

Feb 18, 2002

73

0

6

Fairbanks, Alaska

May 26, 2009

#1

• May 26, 2009

• #1

What are you guys with 347's running for base timing. I'm doing the final assembly on my coast high 10.5:1 347 with AFR 185's and MSD distributor and ignition, and need to know where I should plan on setting the timing when I first get it running. Also what octane are you running if you have the same compression ratio? Thanks in advance.

 

dcurtis

10 Year Member

Jan 19, 2006

688

7

39

May 26, 2009

#2

• May 26, 2009

• #2

10 degrees is a good starting point

 

85_SS_302_Coupe

it sucks (I know) to be on the receiving end

15 Year Member

Nov 11, 2003

6,945

1,598

223

Northern KY

May 26, 2009

#3

• May 26, 2009

• #3

If this is fuel injection and you plan on getting it tuned i'd stay safe with about 10 or 12 initial and leave it there until it gets tuned. You'll probably end up with about 34-36 total but that'll be in the tune. With 10.5:1 i wouldn't run anything less than 91 octane, 93 preferably.

 

A

Alaska5.0

Founding Member

Feb 18, 2002

73

0

6

Fairbanks, Alaska

May 26, 2009

#4

• May 26, 2009

• #4

It is fuel injected. It will not be dyno tuned due to location, but it will have a custum chip from Swanson Performance for my set up. thanks

 

I_AM_CANADIAN

Member

Mar 30, 2005

189

0

16

B.C.

May 26, 2009

#5

• May 26, 2009

• #5

I have the same set up as you except carbed. I also have the mech advance dizzy. I am running 10 degrees initial with 94 octane. I think I am running the 25 degree stop bushing. So my total would be 35*. I do get a bit of pinging if I lug the gears going up a hill. But good otherwise.