[Ant]

I am in the process of ordering a custom built racing transmission, and 5th gear will be 1.1, no problem with 2nd/3rd/4th as when I establish 1st gear I will space them evenly!

What is a good first gear ratio, considering that the car shouldn't weigh over 1000kg, and still be street driven at times, also running a 9.2" alloy blocked 358 Nascar type engine bored/stroked to 380 cu in, running to 7500rpm.

I have used the gear charts eg Smokemup.com entered my data diff ratios 3.27 and 3.08 rear end ratio on 25.6" diameter tires.

I dont want 75mph in first as I had with a 2.32 first gear Toploader on 3.07 at 25.5" rubber, or have a first gear that finishes at 45mph also!
What I am coming up with is a 60mph first at 7000rpm.