When I first bought my Roadster last year, it was missing the velocity stacks and airbox. I found this place as it was close to where my car was and I needed them quickly. Unfortunately, the stacks were too long to fit behind the airbox and I was fortunate enough to have a good friend who let me borrow his stacks. Well, after returning the stacks back to them, we communicated and though it took some time, I had them make me a set of the shorty stacks specifically for the Mikuni-Solex setup that fit behind the carbs. Its a great setup and I highly recommend them.
https://technotoytuning.com/nissan/510/ ... acks-carbs
$180 + shipping and possibly CA tax



and here they are installed on my Roadster

Im probably going to buy another set of the longer 75mm length stacks to use when I take the car to the race track and can run open filters. I might even get a cool anodized color too! haha