well im getting the AFR 205 LS1 heads, comp r lifters some 918 springs running a 234/228 .576, .571 lift and 113 lobe seperation. has anyone came close to running this set up? the reason i ask is to order the right size pushrods, so i can have all the parts i need to start this build and not have to stop....wait a week or so till other parts come in. any info can and will help

 

With that setup you shouldn't have any problem running the stock push rod length 7.4, I'd go with a set of Comp cromoly.