you can trust the words of wisdom these gentlemen are telling you, 13-1 on the street is not even close to being an everyday street car, plan on 1 or 2 days a month and very short trips at best. if you try and putt around it will load up, so you have to crack the throttle open from time to time. they are built to run best wide open. ive got close to 13-1 in a big block, last saturday i drove 28 miles and used almost 7 gallons of 110 sunoco @ 7.20 a gallon. now lets do the math here, $ 50.40 to go to a car show and back home. now i have to go and run the valves after 25 miles, and change the oil after 50 to 75 miles, 7 qts of 20w50 and a 7.00 filter, not to mention the reliability issues of a build like this on the street is horrible. but man it is a blast to drive!