Have a '90 K5 and looking to install new engine. Would like good HP and LOTS of TQ seeing as how I tow a camper alot. I am faced with the choice of fuel systems and there is just not alot out there that compares with a carb. when it comes to hp/$. My question is this: I have seen the Holley 700?? CFM TBI which supposedly will support approximately 275 hp. I also see 750 CFM carbs. on 383 making 500+ hp. I realize that there is a 50CFM advantage for the carb., but does 50 CFM make that much difference or will a carb. just make that much more power than TBI? What is the best injection system to make the kind of power I want? I'd like to have 400 lb. ft. TQ.