When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
The weight is what seems to kill them for racing. I ran a V coupe with headers and a pulley in the vette in the 1/2 mile last year and had a solid 30 mph on him by the end.