Ive seen a number of people fail tech on KSR engines. mostly the extreme carbs. he pushes the limit. ive seen a lot of them win also and pass. Ive seen dover outrun them and vise versa. I would go with dover off price and spend the extra couple houndred on tires and setup. Ive run and won on dover. lots of people are happy with both builders power and run into no problems. Watched ksr engines win quite a few championships.. just seen too many fail tech for my liking. Dover is a couple houndred $ cheeper for an engine that is just as good imo.
Got me a KSR and won first time out with it passed tech no issues. I know a lot of the guys we run with run on dover stuff and ive never heard a single complaint. Id go with the KSR tho, they have won some bigger races i believe.
at our local track clone masters class championship was on dover, 2nd place ksr, 3rd place dover. these were the only dover motors in the series. next year we will be on dover again. remember the engine is just one part of a complete program.
Kevin is a good guy, and he is always at the bigger races, and won the Engine Builder of the Year for the Tri State Series. Jerry ive talked on the phone with twice i believe, very nice, good reputation.
I see and talk to Kevin lots, and for the type of racing i do, it would be KSR, hes at the track and information is key at the big races.