Well deciding on going with a 4:33 or a 4:56 gear on my 355 lt1 12bolt 6speed Car makes 375/390 Rwhp.. And Peak HP at 6480.. I do spray the car but only a 75shot last year and plan on spraying 125 this year. My last years setup was 26" with 4:11's.. i purchased some racestars and need to change my pinoin bearing so while i was in there i was toying around the idea of changing gears. Motor has a cc503 cam in it and 6" rods.. i know the car pulls past the peak HP range just wondering if i do decide to spray the 125shot will the 4:56 and 28" tire work for me. Looking to cut down my 60' time. best i could cut with current setup is 1.65"(viking double adj f&r 300springs upfront) all tubular suspension. Anyone have any input that would be great...

 

And i did use the gear ratio calculator with 4:33 and 4:56 gears...just wondering what people with similar setups are running. Just dont want to run out of gear when i spray on the top end.. thats why the 4:33 came to mind