I run a DZ 302 68 SBC in sand drag jeep.Drop the hammer at 9800, shift 3rd to 4th at 9500. Runs 5 seconds in 300feet.Solid Cam all the way Makes mucho HP above 3800 under 3800 EEEH.A street car sounds great with solids if you have quiet mufflers.People always ask whats the klicking going on under the hood LOL.Have Fun