Remember that depending on the stop bushing used --- when you advance your initial -- you're automatically advancing your total (you add the stop bushing spec to the initial timing setting). Thus the recommendation to switch to the 18* (Black) stop bushing.

With the light silver and light blue springs all your timing should be in by around 2000 rpms... so that doesn't allow you much experimentation before you have way too much timing using your current 25* bushing.

My 408 SBC with EFI runs 15* Initial and 33* total. Small Dart 180 aluminum heads, smallish cam and dyno'd to come up with that combo.

Lol, loved how your demeanor changed after the trun around.

That sounded pretty good, and I'm just plain jealous that you have a test road that close...

Post some more please.

Unlike the Intros I actually have to agree with GW on this one. Start with the total timing you want and work backward. 34 minus 18 is 16 initial which it probably around where you want to be. THen dial in the adv curve from there.
If your motor needed 40 deg like my dinosaur then maybe the 25* bushing would be useful but in your case it's better to star with the 18*. :willy:

Glad to see you have it on the road.:D

Understand the initial + mechanical = total.

Light blue/silver with 18* bushy gives total at about 2200. Two light silvers gives it all at 1750ish.

I double checked last night and I set it up with the two light blues and silver bushing (25*). So it's getting 37* at 3300ish.

Dogs are walked, prime rib egg and cheese sammich on grilled wheat sourdough for wifey and I are consumed.........it's after 10 am = green light to fire it up and start tinkering! Daughters V-ball games aren't until 6 pm. :woot:

Nice to see you finally drug yourself out of bed :lol: Thanks for the confirmation :thumbsup:
Now if I can easily change the bushing without pulling the distributor. :_paranoid

Hey! I can't stick my tail between my legs and exit gracefully with the best of them. :unibrow:

More videos once it doesn't make me appear like it's my first time driving a clutch. :D

It is required to pull the distributor to change stop bushings....

It's just an azz ackward job to try to back the nut off --- put a new bushing on and hold it upside-down while trying to start the nut on again. By the time you do all that -- it's far easier to just pop the cap off and yard the SOB out of there.

HA!
Just did the black bushing and silver spring without one fumble!!!

I know how to use my tools.......and a little dab of grease. :rofl: :rofl: :thumbsup:

Now it's time to warm and tune :woot:

:hail: :thumbsup: :hail: :thumbsup: :hail: :thumbsup:

Congrats on getting it back on the road, Scott