Go solid. I had a set of solids in one of my older Z’s, with a 358 V-8 and a big cam. Something like 305 degrees duration on a 108LSA. No big deal at all. It actually helps the car in a lot of ways, by lessening the stress on the tranny mount, and a very slight increase in the cars reaction to your right foot. It’s not like your car will suddenly turn into a harley with everything loosening up and your hands going numb on the wheel or anything, go for it.