1.5 - 1.7 rocker ratio

I agree. Another thing popped into my head from an old write up about this. Though it was a flat tappet and not a Hyd. roller as I listed. The lifter as it seemed was not able to keep up and there was a HP loss.

I myself am not considering this as of yet. But I thought I'd entertain the idea here. I do have a 360 short block with slugs approx. .070 in the hole & 57cc W5 heads. A 1.6 ratio is what I'll purchase later. I would like to bring the slug up higher. I like flat top slugs @ zero deck height or right close myself. Then. A stray thought wondered in as to use Magnum heads with the 1.7 rocker.

We do know that lift has a direct impact on HP. As long as the head can breath to allow it. A solid roller would not have a collapsing lifter and make this easier in a manor.