408 results

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Where did you end up for timing?

That's a solid deal and good enough to run mid 11's or better at 117+ in your car if it hooks well
 
Couldn't read any numbers. What did it make?
 
It needs more initial timing is my guess, closer to 18. That will clean up the idle and any rpm drop issues when put in gear.
 
If it smells like raw fuel out the pipes, not enough timing at idle.

Simple test... set rpm where you want it. Give Dist a small twist CCW, if RPM increases, the engine wants the timing at idle. REset idle speed and mix screws, do it again.
 
Sniff the tailpipe? Sounds high tech... lol
Agreed, I expect there'll be a little fine tuning to do with tip-in and it's low speed manners.
Looking forward to it! :thumbsup:


crackedback said:
If it smells like raw fuel out the pipes, not enough timing at idle.

Simple test... set rpm where you want it. Give Dist a small twist CCW, if RPM increases, the engine wants the timing at idle. REset idle speed and mix screws, do it again.
Click to expand...
 
No sniffer required other than your nose. Ever stand behind a car that smells like a fuel truck dumping fuel. That's what cars with low initial timing tend to smell like at idle.
 
What heads, cam and compression? Any porting work done? For sure, 469 hp will put a smile on your face!
 
Yes indeed. I have that issue with my 57. It has a ramjet with a gen 3 module in it... basically not tuneable. It sucks! Thinking about changing over to one of the Accel units with an O2 sensor... then I can put a better cam in it too.
So many projects...


crackedback said:
No sniffer required other than your nose. Ever stand behind a car that smells like a fuel truck dumping fuel. That's what cars with low initial timing tend to smell like at idle.
Click to expand...
 
gregsdart said:
What heads, cam and compression? Any porting work done? For sure, 469 hp will put a smile on your face!
Click to expand...

He has a thread titled help me beat my Chevy buddies where he gives a quick run down of the build.

Eddie heads with porting and 10.8 I believe in compression. Cam specs I can not recall.
 
I don't remember the gasket thickness... and the engine / spec sheet is still at the machine shop. Ask me in 2 weeks and I'll share all the info.

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carb n intake.jpg
 
The 408 build is getting popular. They make a lot of torque in the right place. :thumbsup:
 
I broke the 3:55's and have had 3:23's in it for the last couple yrs. Since me and the mrs. do a lot of cruising I think I'll stay with the 3:23's. The 408 is so torquey it didn't really lose very much going to the 3:23's. BTW: I now have MT 275/60/15 drag radials on it and even with 3:23's have major traction issues on the street. 1/4 pedal will break them loose. It hooks fine at the track though
 
Yeah... pretty sure traction is going to be a problem. Good news is nobody will see me lose through all the smoke! haha Who doesn't love a good heater?!
I don't want to cut anything so I have a feeling a 245 ish tire is all that's gonna fit under there. I've never run those drag radials; (on the street) do they get sticky if you heat them up or not really?
Cheers

fishy68 said:
I broke the 3:55's and have had 3:23's in it for the last couple yrs. Since me and the mrs. do a lot of cruising I think I'll stay with the 3:23's. The 408 is so torquey it didn't really lose very much going to the 3:23's. BTW: I now have MT 275/60/15 drag radials on it and even with 3:23's have major traction issues on the street. 1/4 pedal will break them loose. It hooks fine at the track though
Click to expand...
 
Magster65 said:
Yeah... pretty sure traction is going to be a problem. Good news is nobody will see me lose through all the smoke! haha Who doesn't love a good heater?!
I don't want to cut anything so I have a feeling a 245 ish tire is all that's gonna fit under there. I've never run those drag radials; (on the street) do they get sticky if you heat them up or not really?
Cheers
Click to expand...

Keep us posted when you get that build sheet!!
 
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