I dont consider 10's slow at all. For the como's I see on here they run pretty good. My 63 is a street car with a 440 and 4.15 crank with Indy heads and a flat tappet cam. Indy dual plane intake and 850 DP. So far on 92 pump thru the pipes at 3700 lbs it run 10.76 @ 124.49. But I only have 7 passes on the eng so I hope to improve next year. Ron