I pulled mine to 6000 too. I wish that I would have gone to 6300. My numbers were so flat from 5100 to 6000 that the "peak" power would change from 5300 to 5900 rpm on back to back runs with little or no change. I think its because of my cam. Just curious as to how your power tracked after peak.
Here’s a 10.9:1 505 with prepped/blended RPM heads, 6bbl, a 252/260-112 solid cam and my dyno headers(2-2 1/8 x 4).
The intake had some work done to it by a friend of the engines owner.
Timing was 35*, jets were 87/87 front and rear, 66 in the middle.
It doesn’t really have much of a power “peak” either.
On a cold water hero run it made just over 650tq/600hp.
