347 stroker timing

[Alaska5.0]

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 degrees is a good starting point

 

[85_SS_302_Coupe]

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.

 

[Alaska5.0]

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]

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.