I have a modified 454, hit 67 with 23 + mirage what type of horse power you guys thinking..

I am going to try my 23 labbed see if i can get more rpm out of it.

or i can loose rpm and see if this motor will push a 25 mirage prop.

390 to 400. My 2 cents!

When I had my 24 I ran a 4 blade turbo on stock 454 and ran 70 mph , handled great all around.

365hp

4 ppl on board, bob mandera speced it at 500 but i didnt think so i have timing at 32 advanced and need af ratio sensors installed, ppl are telln me to increase to 34-35 timing and im running 84 94 maiin jet so if i lean it out maybe i can get a couple more mph