I agree. Filter before pump (how mine is) & filter after Reg. Also I have 10 from tank to pump, 8 to reg. & 6 to carb BBC 427 (works fine)... in your case I agree using 12 to 10 to 8an for your mtr as it will need it more than mine. If a electric pump such as a Magna flow pro-star 300/500 is used, I do not see why you can not run it on the street! They always advertise "for extended & sustaned use". Properly set up for the street, that is excatly what i would use. Good luck & have fun!