just a mild street strip combo. i was in the process of getting a 55 chevy but gave that up and am now looking at a 67 gto thats why i am wanting to know about the poncho's. i was thinking a good running street/strip 400 or maybe a 421 any insight would be cool also thanks for the links as i am going to dig in and read as much about poncho motors as i can thanks............scooter