Norwood

[GregWeld]

Originally Posted by Sieg

Anyone ever tell you that you've got a big ........cam!

Me don't have wubba mounts. Is that grounded enough?

Big boys have hard mounts.....

[Sieg]

Don't have the off idle throttle dialed..............



Audio wasn't very good, camera might have been too close to the exhaust tip.
I know the sheriff's heard it real good......they could have easily put the hassle on me.

Exhaust note definitely changed with the AFR heads and change from 1-5/8 to 1-3/4 primaries.....similar but slightly different.

[intocarss]

She sounds good SiEg Lucky the Fuzz didn't get ya, and you weren't kidding about "back roads".. Bet it feels great to be driving it again Congrats.

[GregWeld]

HAHAHAHAHA! He goes in like a lion and out like a lamb.....


Not sure what your timing set up is --- I'd be at 16 or 18* initial -- and probably 34* total. Those heads will want LESS timing...

Can't remember if you have vacuum advance or not - but I'd just plug it and run pure mechanical. Vacuum is just for gas milage when you're part throttle cruising anyway.

Run a timing curve that maybe uses one light silver and one light blue spring...

Sounds good but the off idle bog would bother me and that might not be all carb... Especially if you're initial is down around 10* or so.

[intocarss]

Page 44, post # 433, pic #2 No vacume advance

[GregWeld]

Originally Posted by intocarss

Page 44, post # 433, pic #2 No vacume advance

Thanks -- Yep see that.


Sieg -- I'd be running the BLACK 18* STOP bushing in that distributor... Are you familiar with how to change that out. Do you have the set that came with the distributor? It should also have come with some springs -- those come with what I lovingly refer to as GARAGE DOOR springs -- big ass fat silver pair -- they shouldn't be run in anything.... You'll wake that thing right up with the right spings in there. As posted above -- that motor would like the light blue - light silver combo... and that 18* stop bushing.

Crank in more initial timing == you'll have to back your idle adjustment down to compensate (idle will rise with more timing).

[Sieg]

Originally Posted by GregWeld

HAHAHAHAHA! He goes in like a lion and out like a lamb.....


Not sure what your timing set up is --- I'd be a 16 or 18* initial -- and probably 34* total. Those heads will want LESS timing...

Can't remember if you have vacuum advance or not - but I'd just plug it and run pure mechanical. Vacuum is just for gas milage when you're part throttle cruising anyway.

Run a timing curve that maybe uses one light silver and one light blue spring...

Sounds good but the off idle bog would bother me and that might not be all carb... Especially if you're initial is down around 10* or so.

I'm glad I didn't have to get down on my hands and knees and beg for forgiveness.

12* initial with 25* mechanical with light silver & blue.

I won't tolerate a bog it will end up close to Fi response...........stalling under hard braking may be the bigger challenge.

Originally Posted by GregWeld

Thanks -- Yep see that.


Sieg -- I'd be running the BLACK 18* STOP bushing in that distributor... Are you familiar with how to change that out. Do you have the set that came with the distributor? It should also have come with some springs -- those come with what I lovingly refer to as GARAGE DOOR springs -- big ass fat silver pair -- they shouldn't be run in anything.... You'll wake that thing right up with the right springs in there. As posted above -- that motor would like the light blue - light silver combo... and that 18* stop bushing.

Crank in more initial timing == you'll have to back your idle adjustment down to compensate (idle will rise with more timing).

Thanks GW,

My plan is to double check carb baselines - throttle plates/transfer slots, idle bypass valve and mixture screws. Once that's verified I'll throw a little more initial timing at it (14-16*) and see how it responds off idle. After those bases are covered I'm free to experiment with total timing and rate.

After yesterdays little brush with the law () the motor appears to be stronger through the range. Decent tuning weather today!

[Sieg]

Originally Posted by intocarss

She sounds good SiEg Lucky the Fuzz didn't get ya, and you weren't kidding about "back roads".. Bet it feels great to be driving it again Congrats.

It's a pain as I have to drive 6 blocks to make that tuning run.

Yes it's nice to have it back.

[Roberts68]

Congrats Sieg, what you have done since August should serve as an inspiration.
I seriously need to get busy if I am ever to get to a "tuning" stage.
Currently sitting on the fence until after the Holidays with my finger on the button for an HTP Mig.

[GregWeld]

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.