Quote: B1 originals . I have compared them to the pso . It would take allot of work to fit the cast intake to those. I have had the heads cnc'd and did a lay over onto the pso and there sure is allot of material available on the pso . ....one day .
Kool,will be a great comparison!!!!
My lowdeck -1 540 makes 900ish... The RB B1 original 588 made 1050ish with a little more comp.& cam and surprisingly on 500rpm difference in peak power..
Amen on the PSO'S...I've never ran the top/best heads and PSO'S will be my next head!!!