We carry a lot of spare parts and tools. Special tools and parts include valve spring tester, valve spring removal tools, leak down and compression tester, drive shaft for oil pump, gaskets, alternator, starter motor, distributor and wires, valve springs, rockers, pushrods, belts, and more. We learned the hard way through some of our travels over the years that you need to be prepared. It may not be easy to find someone with a spare rocker and a pushrod when you need them between rounds. When we were traveling with the dragster and the Avenger, we even had a spare powerglide and converter plus flex plates. When you drive 1500 miles to race for four days, you need to be self sufficient. The rule is to never remove tools from the trailer unless it is absolutely necessary. My shop and trailer have complete sets of most hand tools.