Here is a fresh 90cc beast with all the goodies for your 1/4 scale project.
As you can see, this motor has a custom intake manifold, bug catcher with nitrous fitting, clutch housing, motor mounts and I am including 2 pipes, one for your top fuel dragster and one for a pro stock or funny car.
I know this is a little late... and i dont need a 90cc motor. But i am looking to build my own 1/4 scale dragster and i would like to know if you built custom engins. Its my first build so i only need between a 25cc and 45cc. If you could do that that would be great. I would like to know the estimated price and if you ship. I dont need anything fancy just something thats cheep. Thanks!