Just so some of you guys know, don't just think because of 60' times or 1/8th mile times will give you an estimated 1/4mile time because it won't. I've been drag racing for a 10 years with a 73 Vega with a 383 best time of a 10.65 In the 1/4. But my 60' times were 1.277 but by the 1/8th mile the small block just couldn't keep pulling at the big end. I went threw the traps at 7200 rpm. It was fun. Now I have a 434 sbc without such a low gear and it pulls lower 60' times and runs 9.20's in the 1/4....