Sounds like a good time Charlie.  Nice to know the truck is faster than the Firechicken.

   God Bless.   Tim                           http://yblockguy.com/

350ci Y-Block FED "Elwood", 301ci Y-Block Unibody LSR "Jake", 312ci Y-Block '58 F-100, 338ci Y-Block powered Model A Tudor

tim@yblockguy.com  Visalia, California    Just west of the Sequoias

So apparently "this weekend" is 4 months later. I finally took a look and the valve train looks fine for once! Valve noise and exhaust leaks sound pretty similar so I'm going to pull the headers to see if I find any sign of an exhaust leak but I can't find my 5/16 socket for the header bolts today. I'll pick one up later in the week. It's been 4 or 5 weeks since I've driven it and I need to run the fuel through and fill up with fresh stuff, anyway.


Lawrenceville, GA

I got a new best tonight, 15.263 @ 91.08mph.  Also a best 1/8th and 60'.  It was busy and I got there late and only got two runs but both were better than before.
The changes since my last best are bringing the total timing in 800rpm sooner and disconnecting and plugging the vacuum advance.  I discovered the vacuum advance trick at Columbus last year but had not yet tried it with higher shiftpoints.  I shift lower at Columbus.Up next is a 4.11 gear.



Lawrenceville, GA

That is great Charlie, what is your rpm limit?

Glen Henderson



Freedom is not Free

Letohatchee, AL

What do you mean?  I was shifting at 5500rpm.  I haven't tried higher but lower and it slows down.One thing I thought was weird is my previous, I was going through the traps at about 6200rpm but last night is was only about 5700rpm.  Since the mph was the same, I don't really get that. 



Lawrenceville, GA

Tachometer problem?

Frank/Rebop

Bristol, In ( by Elkhart) 

You forgot and shifted into 5th.

  Dennis in Lititz PA

Charlie:Have you changed tire sizes since the earlier runs?  That'll change rpm.  Also, were the previous runs at the same track?  Clocks could be set up differently from track to track.

John - "The Hoosier Hurricane"

Same tires, same track.  I guess it could be the tach or my memory.



Lawrenceville, GA

Haven't been back, yet, just documenting changes since the last run before I loose track.  Hopefully it will be enough little things to get me into the 14s.
No rear gear change, yet. Thought it might be worthwhile to tune some more.

Changed from 20w50 conventional to 15W40 synthetic blend oil.
Installed Innovators West Damper.
Installed smaller diameter water pump pulley.  This one hurts power.
Indexed spark plugs.
Corrected rocker geometry.
Increased secondary jets 2 numbers.
Changed carb spacer from 1/2" divided to 2" 4-hole.
Installed a 14" air cleaner assembly, which does not work with the K&N Stub Stack I have been using.



Lawrenceville, GA