The correction factor from sea level to 5000’ is about 1.05 for ET, so a 9.50 is close to a 10.0 @5000’. The Moroso chart shows 825hp for a 9.50@3800lbs, and “most” cars need about 10% more power than indicated to get it done. I’d be shooting for 900hp if that’s really the target ET. Less weight = less power req’d.
Basically, that ET is about 4.6lbs/hp if the car is sorted out.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads