4150 throttle body:which carb. hat to use?
All of the above mentioned names of carb. hats are shaped like a round or oval elbow setup with a 3 1/2 inch opening while the Spectre hat is taller with a 4 inch opening but the top is flat and not round or oval on top like the others. Which one will flow better? If i have to spend the extra $100 then i will because i don't want to buy the spectre hat then turnaround and end up buying the extreme velocity or procharger hat down the road and wasted $100 being cheap. Sealing will make a difference also and im worried the cheaper hat will not seal off the throttle body well.
Any hard facts on the difference on a NA motor?
If i went the EV hat there spacer will add more volume to the intake right?


