Anyone using the "Tri Y" headers? They look pretty compact. Anyone know how well they fit the Mave/Comet chasis? brad
They were designed for the 64 1/2 - 66 Mustangs so they may be a bit high at the collector flange. You might be able to live with it. I am going to try them in my 66 Mustang with a 351 Windsor witch will raise the header about an inch above stock. They buld a lot of torque without sacrificing much in the upper RPM range to about 6500. Most of the ones they are making now are using bigger primary tube size. I figured if they were good enough for a 305 HP 289 they would work for 300 HP 302. My 351 will run just under 1 HP per cubic inch so they should be fine on it.
