Fuel injectors and the rails that hold them are just as susceptible to heat issues as the carburetors they replaced. Located on top of the engine, fuel rails see a lot of heat exposure. On late model vehicles this issue is further compounded by how compact and tight modern engine compartments tend to be, along with the factory engine covers that are all the rage these days, trapping even more heat that can be transferred to the fuel as it flows through the rails on its way to the injectors.
Upgrading the camshaft will require the matching valve springs. Titanium retainers are also recommended. They will reduce the valve weight and prevent valve float. The trunnion bearings in the stock rocker arms are a known weak point. We strongly recommend a trunnion upgrade kit. Swapping in a set of full roller rockers is another option.
The NHRA kicked off its 2018 season with the Lucas Oil NHRA Winternationals two weeks ago. We gave you a recap of the top NHRA class winners here, but here’s a rundown of the Sportsman class winners. As the son of legendary NHRA announcer Dave McClelland, Kevin McClelland is no newbie to drag racing. In fact, his Super Gas victory at the Winternationals earned him his fifth national-event Wally. “This is really special,” McClelland said. “I won this race 21 years ago at my very first national event, and it’s been an awesome run.”
“Words cannot describe this,” Will said, after defeating veteran racer Kyle Seipel in the final, 6.043 (6.01 dial) at 234.13 to 6.862 (6.81), 197.74. “I’m totally excited, and there are so many people to thank for helping me get to this point. I have to thank the fans for showing up. It makes it even more special.”