hey is that goin in your firebird? i bought my firebird with a 305 in it and put an edelbrock performer rpm carb on it and it fit fine. you got to make sure its for a v-8 and the rest is up to you. If you like you can get a holley or some other also go to summitracing.com and go to their store and they got crap loads of stuff for everything like oil pumps, alt brackets etc....