360 & high lift cam

MR4V said

I will second that.
The 360 will be blueprinted so 10.1 is achieved, the heads will also be flowed & porting keeped to a minium & I want to stay with 1.5 ratio rockers.
The target is to get 330-350RWPH for a Dart & mid 12s.
I'm I aimming to high I do not think so.

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As long as the heads are done right that's achievable. Air flow is key. If you don't mind running a solid cam you'd meet your goal much easier. A buddy of mine ran a comp 20-231-4 in a 9.7 to 1 compression 340 with minimal porting on X heads and ran 12.30's in a full street 67 Cuda. It's kinda nasty idling but super responsive. It also requires a 3000+ stall converter but most all the others you are looking at also require a converter of similar size.

Oh yeah, I can attest to Moper's comment on the lift loss. I played with a couple cams in an old engine I had measuring actual valve lift at the cam and found that with geometry as perfect as you can get you still loose at least .015 lift. If the geometry is off lift loss can go considerably higher than that.