Looking at a holley 750 street hp pn 0-82751sa wanting opinions on what everybody thinks is best for a 355 w/ comp magnum cam 501 lift 244 duration. running a 700r4 w/ 3000 stall and 373 rear. I know that some will say the 750 is to big for this motor but I plan on building a 427 small block with AFR heads in the future so I dont want to have to buy another carb in future. Also does anyone know what the sa in the Holley part number is? They list the same part number without the SA its $90 more.