Ok guys,I'm new to this forum,but i have read alot of interesting things on here.So I need some help on my latest project.It's an '87 iroc,305 tpi 5speed car that I picked up for next to nothing.I have an engine built,one that i have had for 2 years now.It's a 10.5 to 1 355,edelbrock performer rpm heads,rpm roller cam,with a lift of 539-548,dur.at .050 is 234-238,with a 112 lobe seperation.1.5 full roller rockers(pro magnums),eagle forged rotating assembly,with h beams rods.I have been looking at the HSR to take place on the tpi.Do you guys think that would be a good intake for the engine?RPM range on the cam and heads are 1500-6500.And do you guys think i would be better off changing over to SD?Fuel injection is a new animal to me,but i want to keep it injected,if possible.Any info you guys can give me will be a great help and appreciated!