Hi Bob:
Even if someone had a BB with all of those parts, it would be a different
setup because of the tranny, the ring and pinion gear, and so on.
1. Get in that: I'm Goin' fishin' mood, you know: I'm going to waste away
the whole day, but I'm not a bum, because I'm fishin'.
2. Find some isolated area, away from residential, where you can tear off a
couple of gears. I have a freeway on-ramp.
3. Change the total timing in two degree increments. Start at 30 degrees,
run up the ramp, then again at 32, and so on. Jot down your impression of
each timing setting. As you get away from the ideal setting it should
become obvious.
4. The same idea with the jetting. Jump two jets at a time, starting with
the stock jetting. Leaning a Holley, most often, causes undesireable
effects, such as bog or stumble. Even for your elevation, never
underestimate a Big block's love of fuel! A stumble is a "too lean"
condition, one hundred percent of the time. I will go out on a limb and say
that you cannot make a engine fall on its face with too much fuel. A too
rich condition will cause a loss of chrisp acceleration. You will sense
that the engine is cleaning out through that too rich part. The most common
over rich error is over modifying the accelerator pump, most all other
errors are too lean. If you have a big cam, and/or headers, the engine will
want more fuel than what Holley jetted for.
Have fun;
Rob '67 Malibu
'67 El Camino (still in a basket)
----- Original Message -----
From: "Robert Belz" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Sunday, July 07, 2002 7:18 PM
Subject: [Chevelle-List] tuning tips anyone?
> Anyone care to share their tuning specs if they are using a Holley 770,
> Performer RPM intake and MSD distributor (on a big block)? So far I have
> tried 32 to 38 degrees total timing, left the blue bushing in the
> distributor and changed the springs to the light blue to get all advance
in
> by 3000 RPM. Left the carb jetting stock (probably could lean it out some
> as I'm at 4800 ft.) Haven't seen much in the way in performance increases
> so far.
> Thanks,
> Bob Belz
>
>
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