Do our stock rockers clear Comp dual springs? Also will they clear the 1.7 Yella Terra's?

Thanks

 

I'm running Y.T's with my COMP 987's with stock valve covers, and no problems yet..

 

It depends on which retainer you use. Some retainers that fit the 987 hump upwards and for those type you'll need to machine (ie, grind) the rockers (pic on my website). If you have the very flat thin type of retainers for 987's, it'll clear the stock rockers just fine.

YT's should clear either style, but I can't say for sure.