It Runs Again, Ignition Is Done And Made Some Fuel System Changes

20140418_191900 Just finished making some changes to the fuel system. Changes include upgrading to a Holley 650 double pump, dual feed carburetor as well as eliminating the return line from the regulator to the fuel cell. The Edelbrock pump has adjustable pressure settings and is set to 9psi, and the regulator mounted under the hood is used for final adjustments to 7psi for better fine tuning. I also replaced all the Jegs branded Push-loc hose with Russel Twist-Loc hose. The Jegs hose was at the time I purchased it, advertised as being compatible with fuel, however later their listing was changed to specifically note that it was NOT compatible with fuel.  Read more
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Total Seal’s Keith Jones Offers Break-in Advice

EngineLabs: Self-tuning EFI systems are quite popular now, but is there a concern for breaking in a new engine with such a system?

Jones: Most important is that it not be overly rich during the break-in period. This is a very common issue with aftermarket EFI & carbs alike. It’s very important to get a proper air/fuel ratio as fast as possible. The newer systems do perform this fairly quick and are generally not a problem, but at the same time the end user needs to be sure it is correct. Overly rich fuel systems can “fuel wash” the cylinder, and the worst time for this is on a fresh engine. Read more

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From Junk To Champ: Rebuilding A Swap Meet Holley 850 For Cheap

With new products being slung left and right, if you’ve got deep pockets, by all means, have at it. If you desire the industry’s latest and greatest, you better have the greenbacks to back it up. On the other hand, if you’ve only got a cheeseburger allowance (like us) to play with, then scoring a swap-meet carburetor for less then what the average tire alignment costs — you’ve scored.
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Advanced Tech: Getting to Know MSD’s Power Grid Features

MSDbug2 Racers have long coveted a universal timing controller that would allow them to seamlessly merge various ignition controls and data logging functions with different racing applications. So it was no surprise a few years back when Autotronic Controls Corporation, better known as MSD Performance, came up with that very hardware. MSD’s versatile Power Grid system was originally conceived when turbo drag cars underwent a wholesale conversion from gasoline to alcohol in search of greater performance. Boost levels quickly escalated and engine builders began switching from Digital 7 ignition boxes to Digital 8s to ensure the spark energy required for richer fuel mixtures. To retain the full programmability found on the sevens, they had to merge the two boxes, prompting MSD to consider developing a programmable Digital 8 unit. Read more
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