Thread: Fuel Injection

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With a wet sump oiling system, there is only so far you can go out of plumb anyway. Check out this article. Looks to me like the Q-Jet is the way to go for performance and also light on the checkbook compared to EFI.
http://www.4wheeloffroad.com/techart...iew/index.html
My best advice would be to purchase it from Cliff Ruggles and have him set it up for your particular application before he ships it....
http://www.cliffshighperformance.com/
Use GM aluminum vortec intake manifold #12496820. This Vortec manifold was designed for ultimate horsepower and torque to be used with Vortec cylinder head, P/N 12529093, 12558060, 12497186 or 12464298, will accept Holley or Quadrajet carburetors and is EGR equipped. Use intake manifold gasket P/N 12529094 and (8) special manifold bolts P/N 12550027. Can be sourced from Scoggin-Dickey....
www.sdparts.com
Alternately, use an Edelbrock Performer Vortec Q-Jet. I have not been able to find a dual-plane, high-rise, Vortec, Quadrajet intake manifold. Edelbrock makes the Performer RPM for a Q-Jet, but not for Vortec L31 heads. Same with Weiand. Seems like someone would cast one up.

OK, I did the same thing for my jeep....I bought a stock '96-2000 vortec long block
for a truck with the idea of using a brand new vortec injection unit that I bought on the bay. I gathered a stock GM Vortec ECM and sent it to Fuel Injection Specialties in San Antonio TX to reprogram for my 4:56 gears and 37" tall tires (back then, now 40"). They also made me a nice harness for the engine/controller. As I worked thru the project, the stock vortec controller had several limitations that proved to be a pain....stuff like VATS and the upstream/downstream oxygen sensors on two cats. After seeing this would get really complicated, I stopped the direction that the project was going and went to a fuel injection system from Arizona Speed and Marine. They used a GM vortec intake, welded injector bungs in the proper locations and topped it with an MSD air meter. The computer is a MEFI unit. It required the proper MSD distributor (for a fuel injection engine) but, when we got it all together and turned the key, it fired immediately and has run great ever since.

We are in Tucson at 2700 ft and the jeep has been to about 12000 ft in Colorado without a hiccup....FI is great, I can be tilted sideways at 45 deg and the thing runs.....the FI cost me about $3800 with the harness, manifold, injectors, air meter and MEFI. It idles great.

mike in tucson