Chris,
How should I interpret "lag"? I'm going to assume that means a rather
abrupt and permanent loss of power above 5,000 rpm. It could either be
valve float or poor ignition, to name my most likely suspects. What do you
have your plugs gapped at? Also, are you using a ballast resistor? If it's
poor spark, then either closing the spark plug gaps and/or shorting out the
ballast resistor should make a difference. What do you know about the valve
springs in your engine? They should have a seat force of 100-150 lbs. I
don't know of an easy way to check it accurately, but maybe you could
figure out something. It is possible to change springs without removing the
heads, but don't put in double or triple springs without doing the proper
machining of the spring seats.
One other off-the-wall thought. Do you have a fuel filter between the pump
and fuel tank? This will cause a problem like you describe with most pumps.
They don't like to have any restriction on the inlet side.
Hope maybe this helps.
Bob
At 12:56 PM 5/25/00 -0700, Chris Vaught wrote:
>it has the factory jetting so i do not know about the jets. i have the fuel
>regulator set at 7psi per the manual and it is above 6psi at 5000 rpm, under
>no load. i guess i need to get one of those in dash fuel pressure gauges. i
>am going to the drag strip this weekend to tune it in better. on the street
>i am a target for some cop! those 2 1/4 flowmasters (40 series) are loud
>when you get into it! I LOVE IT!!!!! Ha Ha Ha Ha. i am wondering if my
>ignition is falling off due to the 13 volts on my amp gauge?
>chris in hawaii
>-----Original Message-----
>From: TIGEROOTES@aol.com <TIGEROOTES@aol.com>
>To: CVaught@hawaii.rr.com <CVaught@hawaii.rr.com>
>Date: Thursday, May 25, 2000 3:44 PM
>Subject: Re: valve float
>
>
> >Chris,
> > Is the carb jetted correctly or is it going lean at high rpm's? Fuel
> >delivery volume?
> >Jim
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