The torquer and RPM where not cut for that motor, both bolted on.The M1 was cut to fit that motor and fit very well, no intake port matching on any of them, they where all smaller ports on the intake side than the heads where. The RPM was sucking oil up thru the intake valley on the dyno a tiny bit, I ended up having the sides cut to make it fit. It is a pump gas street motor in a 1965 Plymouth Satelite whith air, power steering buckets seats console and all the other creature comforts, 3:55 gears and 275x60x15 rear tires. Most of its life will be below 3500 RPM and it is a bunch better at thsoe RPMs than the M1 single plane intake is