I brought Gramma's car to my buddy Al's garage this morning. Did some exhaust clamp tightening after a heat cycle. Took it out for a spin to show Al how it runs. If you stomp on it off idle, it just sits there and spins, shifts into second still spinning and then slowly inches forward and eventually gets into third while still spinning. I REALLY need to get taller tires now. These 25" tall BFGs in the back need to go. I am looking at a 27" tall Nitto 255/50x17 which would match the stock tire height and both fill the wheelwell and make the rear gear a little easier to live with.
This photo is actually someone else's 74 Formula (that looks like the twin to Gramma's car). He has the Nitto 255/50x17s mounted on the Year One 17" Honeycombs. They fill the wheelwells a lot better than the 275/40x17s I have on there now. No one seems to make a 60 series 17" tire other than truck tread tires like a Long Trail T/A.
Compared to my car:
