Gearing ?

There are so many data holes in this thread it is impossible to give You any accurate advice at all. Either You're sticking w/25" dia. rollers or not. What stall converter, what is
the rated efficiency, & where does it actually stall behind the teener? You want a drag set-up, auto-X setup, or street/road course set-up? Right-on w/the previous post about
turning the MPH You're talking, the AAR I did heads for was hittin' 109, worked out roughly 340 at the wheels, He was test shifting as high as 7200 w/that 340. It frankly seems
unlikely(but not impossible) that teener will be anywhere near that, and You stated"100-110 MPH", that's a monumental amount of HP spread Dude!! Like the diff between runs
@13.2 & 12.2 sec., where do You realistically expect to be? O/D is nice, but as has been discussed & I have warned, just because You can cruise at a 2.76-like RPM, doesn't
mean it's safe to go ahead & drive like You're running them. You can easily exceed the prop-shafts critical speed if You hit the highway & get "top happy"!!


My main question was since I'm not gonna gear the car properly for a 3 speed would it be better to gear it so I'd only use the first two gears so they shift and finish at optimal rpm or really if there's any flaw with that idea.

Yes obviously I can't nail down the final ratio until I run it.

The engine will go through a few phases.

1st will be stock long block out of 5th Ave.
With isky 264 cam and Rhoads lifters and performer intake and carb and headers.
Plus a 50-100 hp shot of Nos.

2nd will swap 360 intake and pocket ported heads.

3rd since I want to use the car 9 months out of the year. I got to stay with LA heads cause of the cold months so want to fully port and upgrade the valves to 2.02/1.60 in the stock 302 heads with gasket matched performer intake (air conditioning). Plus allows a comparison between stock and ported 302 heads also 360 heads.

3rd rebuild the bottom end zero deck with a yet decided roller cam with Rhoads lifters hoping for a combo that will allow stock converter be used but carry the powerband up to 6000 ish.