I really HATE those under the floor mounted mastercylinder setups!!!!!!! The pedal should/will be hard as a rock...and mister I mean HARD!!!! Like standing on a rock..THEN the canister is probably fer ****sky!! Try something from and s10pu...might work best!! Actually the best thing is to get your mastercylinder up on the fire wall and not under the floor!!! Just my opinion of course...save yourself a LOT of HEADACHS!!
Rat Rods Rule!