Yes, right out of the box. I chose them because I wanted nice flow and heavy walls. No paper thin porting. Did not flow them, but I'm sure the 330 cfm rating is based on the higher lift of a roller cam. SFT is reliable old school.
I don't guess that an iron block would make more power. My main goal here was taking weight off the front of the car to get closer to 50/50 weight distribution.
As far as the cam, I told Tim Goolsby that I wanted to make at least 600 hp, didn't want to run above 6500 rpm and wanted a wide power band. Nailed it! That cam doesn't want to idle below 1000 rpm, but OMG it's happy and sounds badass idling at 1200.
Eric
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