how about the volumetric efficiency simply
falling off at that rpm, like do you think your
induction system and cam shaft selection supports
rpm at the area where your power fell off?
Joe :)
Dick J wrote:
>I'm running a NASCAR mechanical pump with 1/2 inch lines, but the filter I
>have restricts it to 3/8", so I very well could be running out of gas. I
>pulled the HEI off and put in a Mallory dual point, mechanical advance. I
>think I'll bring the HEI with me. I get what feels like a little miss right
>near the clocks. I'm not sure if it's ignition or if it's a little spitting
>back through the carb.
>Another thing that puzzles me. After the first run, I thought the miss was
>ignition, so I pulled off all of my OEM 7mm wires, and popped on a set of
>Accel 8mms that I had in the tool box. When I start it with the 8mm, it acts
>like the timing is advanced a little from what it was with the 7mm wires.
>Absolutely nothing else was changed, and I changed the wires one at a time to
>be sure that there was no hanky panky with fireing order (which I've been
>known to screw up before!). When I turn it over on the starter with the
>ignition on, it grunts more, and tries to kick back just a little bit. Go
>figure!
>Dick J
> Keith Turk <kturk@ala.net> wrote:Dick Seriously there are a number of
>malady's that could be described by
>that statement.... lets look at a couple...
>
>First off under lots of RPM your fuel delivery system may simply have been
>at it's peak.... and you drained the float bowls... ( this cause's an
>amazingly lean condition that does really ugly things to plugs )( pull them
>out and sneak a peak)
>
>You might have run out of ignition as well.... but as I recall it's a HEI?
>and if it is I'd rather doubt that's the problem....
>
>just a couple of thoughts.... K
>
>
>
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