I read thru the 2200 rocker arm thread (very informative, thanks to all for that info.) and saw the options on the site but have one issue...i wanted to buy the comp cams pro mag roller rockers but most places are sold out and summit recommended the 1618-16 as a substitute..my question is, will these ultra mags fit or do i need to make sure they are narrow bodied rockers? also, will i need a spacer, or will griding the baffle suffice? (btw i have a 00 base 2200 3 speed auto)