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Originally Posted by ERA Chas
Let me attempt to stop some myths before they become "fact".
I did [i]not[i] buy them for CS signature, correctness or investor value.
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Sorry: I didn't mean for the perception to be a put-down or insulting. You missed my point. I know they're good heads. "I" was originally going to buy them. However; after going through the numbers and in my case "FOR THE MONEY", I could do better with KC's stage ll heads (sh*t-to-pay ratio on dollars). As I recall; it was about a grand more (purchase and porting) to get the Shelby's to equal the flow rates of the KC ported Edelbrocks. Off the shelf they are designed for 425 HP (as per the Shelby shop's statement). The off-the-shelf price of the Shelby heads are obviouosly much higher compared to Edelbrocks; or half the country would be buying them. However, you still have to take them to a stage ll or lll to get the flow rates decent for higher performance. I had a budget of 15 grand on a 650HP race motor and I wanted that saved money put into Lunatti Rods and T&D rockers (which are expensive) with a focus being on durability under race conditions. Flow numbers are flow numbers; they don't disintegrate under duress. The original poster wanted to know why so many Shelby blocks have Edelbrock heads on them and I answered his question honestly; purely, "bang for the buck". A lot of gear heads don't have an open cash register and they can equal the quality & performance "cheaper" with modified Edelbrocks.