The Bucket List
- Thread starter Intrepid
- Start date
fletcherson
Well-Known Member
I remember 106 octane, the purple stuff. Still remember how it smelled. 11:1, you will need good fuel, especially with iron heads. I had a 10.5:1 383 with iron heads, a little more duration and lift than yours, and had preignition issues on pump fuel, premium, before ethanol was an issue. It took a lot if tuning to solve. I hope it works out well for you! I'm looking forwards to you posting a clip of it breathing!
tfeverfred
Well-Known Member
Great job!
Intrepid
Active Member
correction its 3/8" plate with 1/8" mirror finish stainless.
The headers need to shortened a bit to fit the real wheels and tires I am putting on and corrected.
I would have thought a well know company like Patriot would have welded them the same length on the collectors but they were off by 1 1/2"
The headers need to shortened a bit to fit the real wheels and tires I am putting on and corrected.
I would have thought a well know company like Patriot would have welded them the same length on the collectors but they were off by 1 1/2"
tfeverfred
Well-Known Member
Wow, that's quite a lot, actually. But easy to fix.
Intrepid
Active Member
Update.
Working on the Carbs.
I got what I was told was 2 600 Holley Vacuum secondary's with the intake, turns out from my research one was an old 566 off of a bus.
I went to the local swap meet and picked up 4 donor carbs for parts ($40) and was able to match up my one good List-1850-2 with another List-1850-2.
And the clean up began.
So here is the plan.
I know these intake can be finicky.
I am swapping out the secondary metering plates from #9 to #8 plates, this keeps my secondary mains .067 but reduces my secondary idle circuit from .031 to .026.
For the primary circuit I am changing my mains from .066 to .060 and tapping the IFR with a 6/32 tap so I can install .024 fuel bleeds restricting the idle circuits down on the main metering block here where the arrows are.
This should get me pretty close on the carb setup.
I am also reducing the power valve from the stock 6.5 to the 5.0 because I think I vacuum will be a bit lower with the cam and big intake.
Working on the Carbs.
I got what I was told was 2 600 Holley Vacuum secondary's with the intake, turns out from my research one was an old 566 off of a bus.
I went to the local swap meet and picked up 4 donor carbs for parts ($40) and was able to match up my one good List-1850-2 with another List-1850-2.
And the clean up began.
So here is the plan.
I know these intake can be finicky.
I am swapping out the secondary metering plates from #9 to #8 plates, this keeps my secondary mains .067 but reduces my secondary idle circuit from .031 to .026.
For the primary circuit I am changing my mains from .066 to .060 and tapping the IFR with a 6/32 tap so I can install .024 fuel bleeds restricting the idle circuits down on the main metering block here where the arrows are.
This should get me pretty close on the carb setup.
I am also reducing the power valve from the stock 6.5 to the 5.0 because I think I vacuum will be a bit lower with the cam and big intake.
tfeverfred
Well-Known Member
Very frugal and great work.
Intrepid
Active Member
I did manage to salvage a good electric choke from one but the others had heat chokes that were all seized up so I ordered another electric choke for the match set.
most people wouldn't need a choke with this type of summer car but up here in Ontario day right now can be 4 degrees in the morning and 25 in the afternoon.
most people wouldn't need a choke with this type of summer car but up here in Ontario day right now can be 4 degrees in the morning and 25 in the afternoon.
fletcherson
Well-Known Member
The power valve selection really won't matter until you actually get a vacuum reading, imho, but your logic is good. What prompted you to make the mods to the metering plates? What are you figuring the jet sizes on? It's nice to see someone actually work on carbs. It takes me back.
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