will it fit

ok so it shall do wonders on a 318 that built with these goodies

eddy performer rpm heads #60779 (ive been hearing bad things about these)
hooker comp headers #hok-5901hkr
holley 650 double pumper
lunati 268/276 cam #60403lk
eddy true roller chain and gear set
kb167 flat tops depending if i have to bore the block a little

and i hope to put a t-56 6spd behind it

For that combo, I would even recommend the Regular RPM Performer. That is a good intake too. Dual Plane but it works very well.