TUNING TIPS FOR IMPCO 425 ON 308
Submitted by GAS355 on Fri, 25/07/2008 - 11:05.
IM LOOKING FOR HELP ON WHAT IS THE BEST WAY TO TUNE AN IMPCO 425 ONTOP OF A 308 WITH ACTIVE MANIFOLD RUNNING VK ELECTRONIC IGNITION STAGE 2 CAM. WHAT IGN SETTING SHOULD I RUN AND HOW DO I TUNE IT IN THE GARAGE WITHOUT PAYING SOMEONE A FORTUNE THANKS
gas355
give me your email address and i'll send you a tune up guide that should work,
steve..
gas tune up guide
G'day Steve (hx308), could I trouble you to send an email my way please.
Thanks
(Sorry to crash your thread GAS355)
Cheers
Bruno
Shed of Wheel Nut
Email me
wheel nut
sent.
might take a while to download its 2.2meg
steve..
Received
Cool, got it :-))
Looks like a good read, lots of info, thanks for passing that on
Cheers
Bruno
Shed of Wheel Nut
Email me
Help - Compromise Young Horse vs. Lame Duck
Newbie is
LOOKING FOR HELP ON WHAT IS THE BEST WAY TO TUNE AN IMPCO 425 ONTOP OF A 350. WHAT IGN SETTING SHOULD I RUN AND HOW DO I TUNE IT IN THE GARAGE WITHOUT PAYING SOMEONE. I got the 425 last year, put it on the original chevy manifold. The surprise was. My 1980 class C RV camper was driven like a young horse. No comparison to the time before it has the originaly Rochester Carb on it, with the LPG Ring and the Ventrui Valve. That was the positive. :)
At the other site, it took 10 liters more on 100 km distance. With the old installation 29 liters/100 km! With the "new" Impco 425, 39 liters/100 km. The Power Screw has now the original position 2,3 cm (0,9 inch) out from the washer. The IGN is 10 degrees before OT (upper deathpoint). The Spark plugs are new and i took the original gaps.
If someone has an idea to get the 425 a little more economical, please feel free to tell it me. Thanks Daniel
The LPG here in Germany is at 0,73 Euro. The Price of 1 liter gasoline 1,47 Euro.
tuning guide impco 425
Hi guys sorry to revive an old post but I was chasing a copy of the tuning info for an impco 425 also can anyone email it to me? Huge thanks
htmonaro100@hotmail.com
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