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Author Topic:   The Night Glow
Dirt Forum Racer

Total posts: 79
posted May 05, 2002 05:31 PM
During my heat race last night I lifted the hood to see what eh glow beneath was. The Stock manafolds looked like two brake lights on a country road!!
I pulled the jets on My RockSucker and they are already 80. How large are some of you all going to richen your combinations?

For comparison
-new engine
-lots of sealant to stop leaks
-Alum GM intake with just the runners blended at gasket.
- 350 all stock cept cam at 29deg advanced

Dirt Freak

Total posts: 298
posted May 05, 2002 05:55 PM
your total ignition timing is retarded to much

Dirt Full Roller

Total posts: 51
posted May 05, 2002 09:16 PM
34-36 deg. timing to start. that should be the problem

Dirt Maniac

Total posts: 156
posted May 05, 2002 09:53 PM
bump up your timming to atleast 36 total degrees and try going down a few sizes in jets it sound funny but works , sometimes

Dirt Freak

Total posts: 417
posted May 06, 2002 02:25 PM UIN: 13209501
Not to jump in on your post, but we had a very similar problem, only it was after the feature. Pulled into the pits and pulled the hood, and the passenger side manifold was just glowing. What would cause one side to do this and not both???


redneck bubbas racing
Dirt Freak

Total posts: 213
posted May 06, 2002 11:35 PM
Dode- Sounds to me like you have an intake leak. Any other ideas?

Dirt Forum Champ
Total posts: 1565
posted May 07, 2002 12:37 AM UIN: 54865418
i would have to agree with bubba i had the same problem as dobber turned out to be a vacume leak in my brake booster the way to check that is get a can of starting fluid and give it a little shot here and there till the motor picks up rpms and thats where your leak will be that might help and lube guy hit it bump her up to 36 and maybe a set of 70-73 jets should be a good place to start

[This message has been edited by racer17j (edited May 07, 2002).]

Dirt Forum Racer

Total posts: 79
posted May 07, 2002 05:03 PM
Does sound funny to advance the timeing more to cool it down. I checked the engine at idle and I set it at 29 because when I rev'ed up the engine the timeing would advance to 35 deg. The vacuum is disconnected but the mechanical is still active. Should I stop the mechanical also?

I have checked for vacuum leaks simular to the way racer did 'cept I used WD40 which also works well and we all have that handy!

Dirt Freak

Total posts: 349
posted May 07, 2002 11:04 PM
I almost burned up an engine in a street car last fall, from the same thing, I timed the engine with a the vacume advance hooked up which in the end, retarded it too much. when I got it under a load (going up a hill hunting) it ran bad, but after I retimed it it ran GREAT. HUmmmm. Its the timing man

Dirt Maniac

Total posts: 174
posted May 08, 2002 01:29 PM
Dode, I've seen the header or exhaust manifold gasket of the two center ports develop a leak and cause the glowing header. check it out.

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