Are you only hearing what you want to hear?.. there's headporting gurus on here that prefer the speedmasters over the edelbrocks... For the price of the custom rockers you'll have to use and pay for to accommodate the trick flows you could buy a complete set of speedmaster heads that will accommodate your factory rockers... If you're building a 416 pump gas street engine there's almost no way of killing north of 400 horsepower...
There's a lot of people on here that like to cyber spend other people's money and I'm not one of them...
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My friend treed me that day and took the win but I came damn close to my dial time... There's something we say in the race forum... "Time slips don't lie".. well not my best time slip it's a good example of factory heads... Fortunately with the availability of aftermarket being so inexpensive these days it's almost easier to buy some aluminum heads already done... Just be aware of the horsepower rabbit hole you go down when you start buying expensive stuff... Now in order to take advantage of those great flowing trick flow heads you're going to need a bigger more radical cam.. and in order to take more advantage you're going to want the gears that you're not looking for in the rear end...
We all want is the best of both worlds where we can lay down a hard lick at the drag strip and have a car that smooth and easy to drive on the street...
Choose wisely grasshopper lol.....
