Originally Posted by ap72
The stock pump from a monte carlo may be more than adequate for 400hp. Pressure has a lot to do with it, also the BSFC of the engine.
#1 the monty would have been carb's so no intank pump
#2 I want to see you install a chevy fuel pump on an olds , and a factory mechanical chevy pump won't feed a 400hp engine even IF the cutlass has a small block chevy under the hood.