David Vizard, Uncle Tony's garage, Unity motorsport. Mission impossible Dodge 302 Head porting

Mattax said
With the 10:1 CR, it shouldn't need as much spark lead as a factory build.
And that's on top of the possibility that the heads actually help create a more homgenous mixing even at low rpm.
I think its going to need high test (93 anti-knock) on the street unless the cam is such that it bleeds some of the compression off. That's stuff that's above my pay grade.

Cranking psi will tell.
Still run it up high for base, but the total...is either do the math.. or wait and see what it likes. 25-30 I would guess..but again, the cam is the rest of the picture.
I'm just responding to this post and haven't read any details other than it