I have the Jim Silagi (sp) book (it has some good info, nothing earthshattering (I felt) & has alot of high dollar part #'s & builds which are beyond me) but is worth purchasing & I have a new set of those Viper rods mentioned. they are 6.221" long & the small end pin hole needs to be opened up .039" (iirc) to fit regular .984" pins.