FWIW the clearances on my deal were .0030-.0035 and the oil we used was 10w30 Brad Penn. New engine uses the same oil and on the dyno saw 66psi, once warmed up it idles at 15ish psi. This is for a Top Sportsman deal and we did not want to leave "free" power on the table. Time will tell how well it works. Even on the heads up piece we see right at 70 at 9800rpm.