I have been reading that people are picking up 2-3 tenth in the 1/4 mile with the Spyder drive shaft and Sutton has them on sale right now for less than $500(http://www.suttonhp.com/store/item.asp?ITEM_ID=667&DEPARTMENT_ID=315). All the reviews I read where done with cars that were stock though, I'm not far from stock but can I expect the same 2-3 tenth with my mods in the 1/4? Also does anyone know if the Spyder shaft will work with the Granatelli Drive shaft safety loop both front and rear(http://www.granatellimotorsports.com/product_display.php?gid=35)?