I only got one run with the enging running decently. I yold you guys about a bog I had recently that I thought I had fixed so-so but I went to the dragstrip (2500 ft elevation differance) and it went to hell. first run was a 16.8 @ 90 so I went with the stock secondary spring and bumped up the initial timing about 2* ran a 15.8 @ 94 I was then feeling good so I came back and put in the brown spring in and ran a 16.2 @ 92. after this I came back to the lanes b/c I boiled the hides almost to the 60. I stopped in the burnout box and tried to spin the tires enough to get them cleaned off and the headlights dimmed and the car died. I started it back up and it seemed to run ok so I ran a real bad 16.9 @ 90 and I got to the time booth and they sent me to tech saying there were sparks coming from the bottom. I got there and things checked out ok so I went back to my spot and started tinkering. I started it back up to check the timing again and the car died and the main battery cable cought on fire! :eek: pulled that off and wrapped it in electrical tape a 3/8" fuel line and more electrical tape. by this time the track closed at 12:00am. I don't know what I need help with but I was hoping for high 14s. all night seemed like one big bog halfway down the track. graemlins/sad.gif let me know what blanks to fill, thanks.

You kept going after a fire smile.gif Damn

Originally posted by pnutkemist:
You kept going after a fire smile.gif Damn my buddies say I have "Chevy pride" b/c they all drive ferds and pigs that quit after anything catastrophic. :D

Zac,
The 94mph tells me you have the power to reach 14s. Since you are roasting the tires, I would try to borrow some from a friend to see if that helps. As for your carb, I would try more trial and error, but until you get it to hook, you will be fighting two tuning issues at once.

Diehard! Zac, it sounds like two things are going on. THe bog *might* have been related to the igniton coil not getting enough juice?? Fix the elctrics, even to a new front harness. Then get some slicks on it!

Do you guys think my cam and gears are just butting heads too hard? What would changing power valves do? Should I get an accelerator pump cam kit too? also if I'm rolling in 1st at 1300rpm and punch it it squats and flies, but from a standstill it bogs until about 2200rpm. *it is getting better* (I think)

Well, the 2,73s do that too, but you might try and use a stiffer secondary spring or setting that delays the opening a bit more. Be prepared to go the other way ( quicker )if it gets worse. Sometimes its hard to know which way to go. At any rate, I'd adjust secondaries next. See what gives.

What where your 60 ft.'s ?

aside from the gears, you need a little convertor too. a 2500rpm stall with some sticky tires would probably do wonders for you. you're bogging might have something to do with the Vac Sec carb. the one thing that i hate about a VS carb is when you spin the tires the secondaries open, but then when it hooks the secondaries are still open but your rpm dies back down and your motor isn't pulling enough fuel through the carb to compensate for the butterflies being open, which causes a bog. i bet if you get it hooked up alot of the bogging will be gone.

Zac,
I went back and re-read your previous post about a bog that lasts halfway down the track.

I noticed your car has a HEI in it.
It DID NOT come stock with that HEI.

Take a 12 gauge wire and run it from one of the empty posts in your fuse box that is ON with the key ON and OFF with the key OFF. Connect it directly to the power terminal on the HEI cap with a spade connector.

If the HEI is connected to the original + wire in your original wire loom that went to your old coil, it WON'T have enough voltage. That original wire is a RESISTANCE wire that suplies nearly full voltage when you first start the car but gradually cuts voltage to about 10-10.5 volts after a few minutes so the original points won't burn.
The HEI MUST HAVE FULL BATTERY VOLTAGE AT ALL TIMES WHEN RUNNING or it won't produce enough spark to fire the motor under hard load.

Try that and see how it works.

Randy

what M71 said..secondary spring selection is critical,especially with a smaller motor with no gear,and no convertor.You'll probably need a spring thats stiffer than you think.

Originally posted by mr 4 speed:
What where your 60 ft.'s ? I don't know the slip shack was giving out crappy slips like the ink was running out or something I think they were something like 2.5 - 2.8 if I can remember graemlins/clonk.gif I'l pull apart that loom and check the coil wire.