Best power number we saw with my pump gas 470 was 780 hp. But that was with a Wilson ported intake and a Dominator. You won't get close to that with an as cast Indy intake and a 4150 carb. But you could see 725 hp with the correct camshaft, correct headers and a port matched intake.
I think the port matched intake he will do as he did his M1 for the Eddy heads on the 440. What would you say a correct camshaft would be, similar to your 264/268 but it won't have the lift, I can try and persuade him to go 1.6 rkrs on a ..660" roller to .704" but think I'm going to be hard pressed to get him to accept that, the street mentality beckons too much still I think although he's up for the race part of it more recently......2" hdrs will be the ones he should have more space in an E body for that with a low deck. 725hp would be ok, lose 100lb or so and we got a 9 sec "street" car, now thats worth spending the money on.
