I can’t give you an honest answer to that because there are to many other factors and I didn’t do the heads to match them up. On an intake like this I really like to use a one inch spacer to better shape the runner entrance. For 150.00 I couldn’t go to crazy so I hope she gets where she wanted to be. I probably wouldn’t touch an intake anymore for less than 350.00 but these two are possibly going to be family.