355 SBC, most likely Edelbrock RPM heads spinning no more than 6,500-7,000, undecided on cam until I get the turbos and head selection pinned down. Looking at two of the T4 1.05 A/R 92 eBay GT45's. I've been told they would be lazy, others have said they would work great. I'm about ready to pull the trigger, just want some feedback. Thanks!