Especially for heads that flow around 280-ish on the intake.
My W-2's are at .294 @ .600 and Wyrmryder and I had a helluva time convincing our cam grinder to give me a bit more lift than his first couple of suggestions. I may go to 1.6 intake rockers to get a bit more on the top end.
The owner of this WISSOTA spec motor spins this thing 7800. I'm too cautious for much over 7,000 rpm.
My Bowtie and Ford friends all are running .650-.680 lifts...some even more with their boutique wide bore engines. That's how they make 800HP at a reliable 8500-9000 rpm.
