Finally starting to get things dialed in.

We were messing with the car, and verified the secondaries were opening. We were still seeing a sputter around 1500-1700 rpms, and were scratching our heads. Car died, and wouldn't start back up... Threw a charger with a high boost mode onto it, and got her to fire back up. While she was still attached to the charger, we played with it some more, and the hesitation went away... -_-

Scratching our heads, the only thing we could think of is that the alternator isn't generating enough power, and the battery is weak. We have a new alternator and battery on order - to be picked up tomorrow. Hopefully this fixes the issue!

__________________
-Justin

91 560 SEC AMG - other dogs dd
01 Honda S2000 - dogs dd
07 MB ML320 CDI - dd
16 Lexus IS250 - wifes dd

it's automatic.

thats odd because usually the booster mode only supplies power when it sees a huge draw. holley carbs can be some of the biggest pain in the ass carbs to get setup, but once dialed in, theyre every bit as good as fuel injection.

__________________
have no worries.....President Obama swears "If you like your gun, you can keep it

Didn't you say you put a cam in it? You may need to swap to a different power valve

__________________
have no worries.....President Obama swears "If you like your gun, you can keep it

.....A big cam will play havoc with anything operated by vacuum on a carb.....such as the secondary opening and some of the idle circuits.

__________________
[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

Can you put a vacuum inducer in the system? Maybe a vacuum pump?

__________________
01 Ford Excursion Powerstroke
99 E300 Turbodiesel
91 Vette with 383 motor
05 Polaris Sportsman 800 EFI
06 Polaris Sportsman 500 EFI
03 SeaDoo GTX SC Red
03 SeaDoo GTX SC Yellow
04 Tailgator 21 ft Toy Hauler
11 Harley Davidson 883 SuperLow

Dunno. In a carb the vacuum is used because it changes with engine rpm and need for fuel, so a vacuum inducer would have to mimic that behavior.

__________________
[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

No cam, just the stock 85 5.0 roller cam.

__________________
-Justin

91 560 SEC AMG - other dogs dd
01 Honda S2000 - dogs dd
07 MB ML320 CDI - dd
16 Lexus IS250 - wifes dd

it's automatic.

Have you pulled your plugs to 'take readings' yet?

Rich is safer than lean, but rich can add carbon deposits, foul plugs, and allow fuel into your crank case.

I only know junky motorcycle carbs, so I can't help you beyond that.

__________________
$60 OM617 Blank Exhaust Flanges
$110 OM606 Blank Exhaust Flanges
No merc at the moment

is this the original carb?

__________________
have no worries.....President Obama swears "If you like your gun, you can keep it