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Original Message
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| RE: dual Holley 500s............ |
| By Royce Peterson - 01/26/2003 2:41:14 PM; IP 198.81.26.135 |
Pete,
A properly set up 8V Ford intake is magnificent. The off the shelf Holley carbs are not calibrated properly for this application and will indeed bog, foul plugs etcetera.
You do not know what you are talking about concerning the '67 Shelby setup. It is awesome in stock form. It gets screwed up in a hurry by bad gas or incompetent tuning.
A pair of 2V's will have poor response compared to the stock 600 CFM carbs because there are only two metering circuits. The stock 8V setup works so well because of the vacuum secondaries and the eight venturis.
Because of the different way of rating 2V carbs compared to 4V and 8V systems the 500CFM 2V carbs with mechanical actuation will bog more compared to the vacuum secondary 600CFM 4V's. They could nonetheless be tuned to work OK but never as clean running as a stock set of BJ / BK's.
Many people who ride in my 427 GTE with 8V Medium Riser and BJ / BK's are astounded because they have heard the same incorrect rumors that you just stated. I have had people say "Wow, is this thing fuel injected?" There is no bog, no hesitation. It starts up cold and runs perfectly clean. Plugs last a at least 2500 miles in stop and go driving, putting around shows and drag strip playing, that's how far the car has been driven since the 8V intake went on and the plugs still look like new with a little tan coloring.
Royce |
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