Best guess on 434" sbm

4.125" stroke
4.090 bore
W2's 290 cfm @ 700 lift
13.1 compression
709/687 lift roller
277/288 @ .050
Tunnel ram 2-750 holleys
4500 tcs
4.88
Caltracs, bars, monos, shocks
3800 lbs

What et and mph?