When it comes to motor building you need to know the goal intended(wanting to achieve) before you start buying parts, I've been lucky on some projects and paid the price on other projects by not using the parts that are compatable with the intended goal. Save your money do it right to start with Set a realistic goal that you can achieve on YOUR budget and go have some fun Learn and move on, save for the next project and move up the food change safely with better parts To many RPM will kill a lot of parts as well as cars and sometimes the driver and spectatotors