08-30-2008, 07:39 AM
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Senior Club Cobra Member
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Join Date: Jun 2007
Location: Covington,
wa
Cobra Make, Engine: Superformance # 532, 466 BB, 560HP
Posts: 3,027
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Not Ranked
Quote:
Originally Posted by Michael C Henry
We ( or I ) could use a nother forum for regular or irregular Carb tuning. I assembled the carbs with the parts Stan sent. As it turned out I started with Holley 1850 carbs. Primarys had #6.5 powervalves ,#65 jets and original fixed idle restrictions. Stan sent me two primary metering blocks prepaired for changable idle restrictions. He had installed .026" screw in idle restrictions and installed #5 powervalves. I transfered my #65 jets.
Vacume secondaries have QFT metering plates with changable jets and idle restricters and notched floats to clear the regular changeable secondary jets. The QFT secondary metering plates came with .038" idle restrictions. I changed to .032" restricters and left the #67 jets in. I just barely got it going and had to park the car for the upcoming home canning project. One circle of the neighborhood and the windsheild 's 2 inch crack at bottom went all the way to the top and started back down. I have yet to realy test and tune before I start the next goaround.
I'm expecting the engine throttle to be more crisp, but wonder with this cam shaft, intake manifold, and carb setup,I now have, It may never happen. The afore mentioned parts all seem to be parts intended for high RPM operation. I've had engines that when the throttle was cracked in neutral the engine was instantly at the RPM, not still climbing. But again those were single four barrels and dual plane intake manifolds. Now it seems to be acting like a built in form of traction control. I have a programable Mallory ignition and currently have the RPM limit set at 6000 RPM and without it I would probably get into real trouble. When driving the car accelereating in first and second gears, the engine is realy climbing quickly when the RPM limiter comes into play. I'm realy not into slipping the clutch and or burning tires( I would have to buy and replace all this myself.
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I would suggest taking your car to Craig Blood at Blood Enterprises in Auburn. He worked wonders with my car, and I'm very happy with the results.
http://www.bloodenterprises.com/
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