Just finished putting a 455 in my 69 cutlass have to finish exhaust tonight. But any way looking for a close guess of hp / torque. Its a 72 block, E heads low compression pistons i think. had a dish to them. Torqer intake, 800 cfm rochester carb. Bought it and just heard it run last night. Sounds like a nice cam in it but I am not sure of what size of that and I know it makes a difference but just seeing what you guys think. I put hooker super comp headers and running full 3" flowmaster kit tonight. Thanks everyone is always so helpful on this site!

 

250 horse, 350 torque Should be a ball park.

 

I think this is a little on the low side of the ballpark estimate, but hopefully wrong! I would guess 300ish/ 425tq. This is assuming its tuned well! Only way to be sure is to dyno it, or take it to the track. With a mph figure and vehicle weight you can calculate pretty accurately.