Atsa buncha questions Bolt
Most of the answers would be conjecture on my part because I am not BB and the best I can do for you is give you Mike Lewis' phone number. To me your cam is pretty mild and I think it would do great on the street but Idunno on a BB for sure.
Lewis Racing Engines, on California time and hours of business is conventional and he works a little on Saturday mornings. He hangs out at Team Chevelle, username Wolfplace. He is a helluva nice guy and very, very knowledgeable.
Right now I have a set of Comp Magnum pushrods, and if I need different length I will just call Mike and shoot the **** awhile and order a set of what he recommends. Give him my card numbers and shortly the brown truck will bring them straight to me I reckon. I ain't skeered of my Comp Magnums, but if stiffer bastards will get rid of some spaghetti-o's AND my current length is wrong.... we gonna have SOTA even though State Of The Art will probly be different mañana. Hell, when I ordered my comps it took 3 weeks to get em from Comp. Mike says he gets em from the folks(and quick) that make em for Comp and others, I forget their name.
Mike put Manley springs on my T1 CNC heads, they are 240-260 seat. He asked if I had a spring preference and I said I prefer springs with no bad habits and only good traits
. I had a set of green Brodix springs on them, Mike said they were good for another season but I wanted new. He sent them back to me because I wanted them for another set of T1's I have.
I followed Mike's recommendation and bought the Moroso valve spring tester to check seat pressures in order to get a baseline and monitor. That tool works slick. Sorry the pic is blurry, kinda tough to hold the camera steady and pull on the tester. I got lucky and the hook that comes with the tool works on my Jesels.
I advise quizzing Mike about drilling holes in gallery plugs. If your cam bushing has clearance there is a ton of oil going on up there. And if it doesn't have clearance you won't run long anyway. Use hard cam bushings, soft ones will fatigue on a SR spring pressure. Your seat pressures you are talking about aren't that high anyway on second thought, soft bushings may survive a season. Ask Mike
. BTW Mike is an Isky distributorsky.